Cache the delegates we use in simplification.

src/Workspaces/CSharp/Portable/Simplification/AbstractCSharpReducer.AbstractExpressionRewriter.cs

@@ -128,15 +128,6 @@ private static SyntaxNode GetParentNode(StatementSyntax statement)
                 return SimplifyNode(expression, newNode, parentNode, simplifier);
             }
 
-            protected SyntaxNode SimplifyStatement<TStatement>(
-                TStatement statement,
-                SyntaxNode newNode,
-                Func<TStatement, SemanticModel, OptionSet, CancellationToken, SyntaxNode> simplifier)
-                where TStatement : ExpressionSyntax
-            {
-                return SimplifyNode(statement, newNode, GetParentNode(statement), simplifier);
-            }
-
             protected SyntaxToken SimplifyToken(SyntaxToken token, Func<SyntaxToken, SemanticModel, OptionSet, CancellationToken, SyntaxToken> simplifier)
             {
                 _cancellationToken.ThrowIfCancellationRequested();

src/Workspaces/CSharp/Portable/Simplification/CSharpCastReducer.Rewriter.cs

@@ -22,7 +22,7 @@ public override SyntaxNode VisitCastExpression(CastExpressionSyntax node)
                 return SimplifyExpression(
                     node,
                     newNode: base.VisitCastExpression(node),
-                    simplifier: SimplifyCast);
+                    simplifier: s_simplifyCast);
             }
 
             public override SyntaxNode VisitBinaryExpression(BinaryExpressionSyntax node)

src/Workspaces/CSharp/Portable/Simplification/CSharpCastReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Linq;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
@@ -17,6 +18,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(optionSet, cancellationToken);
         }
 
+        private static readonly Func<CastExpressionSyntax, SemanticModel, OptionSet, CancellationToken, ExpressionSyntax> s_simplifyCast = SimplifyCast;
+
         private static ExpressionSyntax SimplifyCast(CastExpressionSyntax node, SemanticModel semanticModel, OptionSet optionSet, CancellationToken cancellationToken)
         {
             if (!node.IsUnnecessaryCast(semanticModel, cancellationToken))
@@ -44,4 +47,4 @@ private static ExpressionSyntax SimplifyCast(CastExpressionSyntax node, Semantic
             return resultNode;
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/CSharp/Portable/Simplification/CSharpEscapingReducer.Rewriter.cs

@@ -20,8 +20,8 @@ public Rewriter(CSharpEscapingReducer escapingSimplifierService, OptionSet optio
             public override SyntaxToken VisitToken(SyntaxToken token)
             {
                 var newToken = base.VisitToken(token);
-                return SimplifyToken(newToken, _escapingSimplifierService.SimplifyIdentifierToken);
+                return SimplifyToken(newToken, s_simplifyIdentifierToken);
             }
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/CSharp/Portable/Simplification/CSharpEscapingReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Linq;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
@@ -17,7 +18,9 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(this, optionSet, cancellationToken);
         }
 
-        private SyntaxToken SimplifyIdentifierToken(
+        private static Func<SyntaxToken, SemanticModel, OptionSet, CancellationToken, SyntaxToken> s_simplifyIdentifierToken = SimplifyIdentifierToken;
+
+        private static SyntaxToken SimplifyIdentifierToken(
             SyntaxToken token,
             SemanticModel semanticModel,
             OptionSet optionSet,
@@ -114,7 +117,7 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return result;
         }
 
-        private SyntaxToken CreateNewIdentifierTokenFromToken(SyntaxToken originalToken, bool escape)
+        private static SyntaxToken CreateNewIdentifierTokenFromToken(SyntaxToken originalToken, bool escape)
         {
             var isVerbatimIdentifier = originalToken.IsVerbatimIdentifier();
             if (isVerbatimIdentifier == escape)

src/Workspaces/CSharp/Portable/Simplification/CSharpExtensionMethodReducer.Rewriter.cs

@@ -20,8 +20,8 @@ public override SyntaxNode VisitInvocationExpression(InvocationExpressionSyntax
                 return SimplifyExpression(
                     node,
                     newNode: base.VisitInvocationExpression(node),
-                    simplifier: SimplifyExtensionMethod);
+                    simplifier: s_simplifyExtensionMethod);
             }
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/CSharp/Portable/Simplification/CSharpExtensionMethodReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Diagnostics;
 using System.Linq;
 using System.Threading;
@@ -17,6 +18,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(optionSet, cancellationToken);
         }
 
+        private static readonly Func<InvocationExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyExtensionMethod = SimplifyExtensionMethod;
+
         private static SyntaxNode SimplifyExtensionMethod(
             InvocationExpressionSyntax node,
             SemanticModel semanticModel,

src/Workspaces/CSharp/Portable/Simplification/CSharpInferredMemberNameReducer.Rewriter.cs

@@ -26,7 +26,7 @@ public override SyntaxNode VisitArgument(ArgumentSyntax node)
                         node,
                         parentNode: node.Parent,
                         newNode: newNode,
-                        simplifier: SimplifyTupleName);
+                        simplifier: s_simplifyTupleName);
                 }
 
                 return newNode;
@@ -38,7 +38,7 @@ public override SyntaxNode VisitAnonymousObjectMemberDeclarator(AnonymousObjectM
                     node,
                     parentNode: node.Parent,
                     newNode: base.VisitAnonymousObjectMemberDeclarator(node),
-                    simplifier: SimplifyAnonymousTypeMemberName);
+                    simplifier: s_simplifyAnonymousTypeMemberName);
             }
         }
     }

src/Workspaces/CSharp/Portable/Simplification/CSharpInferredMemberNameReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
@@ -19,6 +20,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(optionSet, cancellationToken);
         }
 
+        private static readonly Func<ArgumentSyntax, SemanticModel, OptionSet, CancellationToken, ArgumentSyntax> s_simplifyTupleName = SimplifyTupleName;
+
         private static ArgumentSyntax SimplifyTupleName(ArgumentSyntax node, SemanticModel semanticModel, OptionSet optionSet, CancellationToken cancellationToken)
         {
             // Tuple elements are arguments in a tuple expression
@@ -37,6 +40,7 @@ private static ArgumentSyntax SimplifyTupleName(ArgumentSyntax node, SemanticMod
             return node.WithNameColon(null).WithTriviaFrom(node);
         }
 
+        private static readonly Func<AnonymousObjectMemberDeclaratorSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyAnonymousTypeMemberName = SimplifyAnonymousTypeMemberName;
 
         private static SyntaxNode SimplifyAnonymousTypeMemberName(AnonymousObjectMemberDeclaratorSyntax node, SemanticModel semanticModel, OptionSet optionSet, CancellationToken canellationToken)
         {

src/Workspaces/CSharp/Portable/Simplification/CSharpMiscellaneousReducer.Rewriter.cs

@@ -21,7 +21,7 @@ public override SyntaxNode VisitParameter(ParameterSyntax node)
                     node,
                     newNode: base.VisitParameter(node),
                     parentNode: node.Parent,
-                    simplifier: SimplifyParameter);
+                    simplifier: s_simplifyParameter);
             }
 
             public override SyntaxNode VisitParenthesizedLambdaExpression(ParenthesizedLambdaExpressionSyntax node)
@@ -30,8 +30,8 @@ public override SyntaxNode VisitParenthesizedLambdaExpression(ParenthesizedLambd
                     node,
                     newNode: base.VisitParenthesizedLambdaExpression(node),
                     parentNode: node.Parent,
-                    simplifier: SimplifyParenthesizedLambdaExpression);
+                    simplifier: s_simplifyParenthesizedLambdaExpression);
             }
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/CSharp/Portable/Simplification/CSharpMiscellaneousReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Linq;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
@@ -50,6 +51,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return false;
         }
 
+        private static Func<SyntaxNode, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyParameter = SimplifyParameter;
+
         private static SyntaxNode SimplifyParameter(
             SyntaxNode node,
             SemanticModel semanticModel,
@@ -66,6 +69,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return node;
         }
 
+        private static readonly Func<SyntaxNode, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyParenthesizedLambdaExpression = SimplifyParenthesizedLambdaExpression;
+
         private static SyntaxNode SimplifyParenthesizedLambdaExpression(
             SyntaxNode node,
             SemanticModel semanticModel,

src/Workspaces/CSharp/Portable/Simplification/CSharpNameReducer.Rewriter.cs

@@ -30,7 +30,7 @@ public override SyntaxNode VisitPredefinedType(PredefinedTypeSyntax node)
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitPredefinedType(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -48,7 +48,7 @@ public override SyntaxNode VisitAliasQualifiedName(AliasQualifiedNameSyntax node
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitAliasQualifiedName(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -66,7 +66,7 @@ public override SyntaxNode VisitQualifiedName(QualifiedNameSyntax node)
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitQualifiedName(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -84,7 +84,7 @@ public override SyntaxNode VisitMemberAccessExpression(MemberAccessExpressionSyn
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitMemberAccessExpression(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -102,7 +102,7 @@ public override SyntaxNode VisitIdentifierName(IdentifierNameSyntax node)
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitIdentifierName(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -120,7 +120,7 @@ public override SyntaxNode VisitGenericName(GenericNameSyntax node)
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitGenericName(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 
@@ -138,7 +138,7 @@ public override SyntaxNode VisitQualifiedCref(QualifiedCrefSyntax node)
                 var result = SimplifyExpression(
                     node,
                     newNode: base.VisitQualifiedCref(node),
-                    simplifier: SimplifyName);
+                    simplifier: s_simplifyName);
 
                 this.alwaysSimplify = oldAlwaysSimplify;
 

src/Workspaces/CSharp/Portable/Simplification/CSharpNameReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
@@ -17,6 +18,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(optionSet, cancellationToken);
         }
 
+        private static readonly Func<SyntaxNode, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyName = SimplifyName;
+
         private static SyntaxNode SimplifyName(
             SyntaxNode node,
             SemanticModel semanticModel,

src/Workspaces/CSharp/Portable/Simplification/CSharpParenthesesReducer.Rewriter.cs

@@ -20,8 +20,8 @@ public override SyntaxNode VisitParenthesizedExpression(ParenthesizedExpressionS
                 return SimplifyExpression(
                     node,
                     newNode: base.VisitParenthesizedExpression(node),
-                    simplifier: SimplifyParentheses);
+                    simplifier: s_simplifyParentheses);
             }
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/CSharp/Portable/Simplification/CSharpParenthesesReducer.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Linq;
 using System.Threading;
 using Microsoft.CodeAnalysis.CSharp.Extensions;
@@ -17,6 +18,8 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return new Rewriter(optionSet, cancellationToken);
         }
 
+        private static readonly Func<ParenthesizedExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode> s_simplifyParentheses = SimplifyParentheses;
+
         private static SyntaxNode SimplifyParentheses(
             ParenthesizedExpressionSyntax node,
             SemanticModel semanticModel,
@@ -54,4 +57,4 @@ public override IExpressionRewriter CreateExpressionRewriter(OptionSet optionSet
             return node;
         }
     }
-}
+}
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/AbstractVisualBasicReducer.vb

@@ -9,6 +9,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
     Partial Friend MustInherit Class AbstractVisualBasicReducer
         Inherits AbstractReducer
 
+        Protected Shared ReadOnly s_reduceParentheses As Func(Of ParenthesizedExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf ReduceParentheses
+
         Protected Shared Function ReduceParentheses(
             node As ParenthesizedExpressionSyntax,
             semanticModel As SemanticModel,
@@ -45,6 +47,5 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             ' We don't know how to simplify this.
             Return node
         End Function
-
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicCallReducer.Rewriter.vb

@@ -17,16 +17,15 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyStatement(
                     node,
                     newNode:=MyBase.VisitCallStatement(node),
-                    simplifier:=AddressOf SimplifyCallStatement)
+                    simplifier:=s_simplifyCallStatement)
             End Function
 
             Public Overrides Function VisitParenthesizedExpression(node As ParenthesizedExpressionSyntax) As SyntaxNode
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitParenthesizedExpression(node),
-                    simplifier:=AddressOf ReduceParentheses)
+                    simplifier:=s_reduceParentheses)
             End Function
-
         End Class
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicCallReducer.vb

@@ -13,6 +13,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyCallStatement As Func(Of CallStatementSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyCallStatement
+
         Private Shared Function SimplifyCallStatement(
             callStatement As CallStatementSyntax,
             semanticModel As SemanticModel,

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicCastReducer.Rewriter.vb

@@ -17,30 +17,29 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitCTypeExpression(node),
-                    simplifier:=AddressOf SimplifyCast)
+                    simplifier:=s_simplifyCast)
             End Function
 
             Public Overrides Function VisitDirectCastExpression(node As DirectCastExpressionSyntax) As SyntaxNode
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitDirectCastExpression(node),
-                    simplifier:=AddressOf SimplifyCast)
+                    simplifier:=s_simplifyCast)
             End Function
 
             Public Overrides Function VisitTryCastExpression(node As TryCastExpressionSyntax) As SyntaxNode
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitTryCastExpression(node),
-                    simplifier:=AddressOf SimplifyCast)
+                    simplifier:=s_simplifyCast)
             End Function
 
             Public Overrides Function VisitPredefinedCastExpression(node As PredefinedCastExpressionSyntax) As SyntaxNode
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitPredefinedCastExpression(node),
-                    simplifier:=AddressOf SimplifyCast)
+                    simplifier:=s_simplifyPredefinedCast)
             End Function
-
         End Class
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicCastReducer.vb

@@ -29,6 +29,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return resultNode
         End Function
 
+        Private Shared ReadOnly s_simplifyCast As Func(Of CastExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = s_simplifyCast
+
         Private Overloads Shared Function SimplifyCast(
             node As CastExpressionSyntax,
             semanticModel As SemanticModel,
@@ -43,7 +45,9 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return SimplifyCast(node, node.Expression, optionSet, cancellationToken)
         End Function
 
-        Private Overloads Shared Function SimplifyCast(
+        Private Shared ReadOnly s_simplifyPredefinedCast As Func(Of PredefinedCastExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyPredefinedCast
+
+        Private Overloads Shared Function SimplifyPredefinedCast(
             node As PredefinedCastExpressionSyntax,
             semanticModel As SemanticModel,
             optionSet As OptionSet,
@@ -57,4 +61,4 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return SimplifyCast(node, node.Expression, optionSet, cancellationToken)
         End Function
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicExtensionMethodReducer.Rewriter.vb

@@ -19,8 +19,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitInvocationExpression(node),
-                    simplifier:=AddressOf SimplifyInvocationExpression)
+                    simplifier:=s_simplifyInvocationExpression)
             End Function
         End Class
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicExtensionMethodReducer.vb

@@ -12,6 +12,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyInvocationExpression As Func(Of InvocationExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyInvocationExpression
+
         Private Shared Function SimplifyInvocationExpression(
             invocationExpression As InvocationExpressionSyntax,
             semanticModel As SemanticModel,

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicInferredMemberNameReducer.Rewriter.vb

@@ -24,7 +24,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                         node,
                         parentNode:=node.Parent,
                         newNode:=newNode,
-                        simplifyFunc:=AddressOf SimplifyTupleName)
+                        simplifyFunc:=s_simplifyTupleName)
                 End If
 
                 Return newNode
@@ -37,7 +37,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                     node,
                     parentNode:=node.Parent,
                     newNode:=newNode,
-                    simplifyFunc:=AddressOf SimplifyNamedFieldInitializer)
+                    simplifyFunc:=s_simplifyNamedFieldInitializer)
             End Function
         End Class
     End Class

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicInferredMemberNameReducer.vb

@@ -18,6 +18,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New VisualBasicInferredMemberNameReducer.Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyTupleName As Func(Of SimpleArgumentSyntax, SemanticModel, OptionSet, CancellationToken, SimpleArgumentSyntax) = AddressOf SimplifyTupleName
+
         Private Shared Function SimplifyTupleName(
             node As SimpleArgumentSyntax,
             semanticModel As SemanticModel,
@@ -41,6 +43,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return node.WithNameColonEquals(Nothing).WithTriviaFrom(node)
         End Function
 
+        Private Shared ReadOnly s_simplifyNamedFieldInitializer As Func(Of NamedFieldInitializerSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyNamedFieldInitializer
+
         Private Shared Function SimplifyNamedFieldInitializer(node As NamedFieldInitializerSyntax, arg2 As SemanticModel, arg3 As OptionSet, arg4 As CancellationToken) As SyntaxNode
             Dim inferredName = node.Expression.TryGetInferredMemberName()
 

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicMiscellaneousReducer.Rewriter.vb

@@ -19,7 +19,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitInvocationExpression(node),
-                    simplifier:=AddressOf SimplifyInvocationExpression)
+                    simplifier:=s_simplifyInvocationExpression)
             End Function
 
             Public Overrides Function VisitObjectCreationExpression(node As ObjectCreationExpressionSyntax) As SyntaxNode
@@ -28,7 +28,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitObjectCreationExpression(node),
-                    simplifier:=AddressOf SimplifyObjectCreationExpression)
+                    simplifier:=s_simplifyObjectCreationExpression)
             End Function
 
             Public Overrides Function VisitParameter(node As ParameterSyntax) As SyntaxNode
@@ -38,9 +38,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                     node,
                     newNode:=MyBase.VisitParameter(node),
                     parentNode:=node.Parent,
-                    simplifyFunc:=AddressOf SimplifyParameter)
+                    simplifyFunc:=s_simplifyParameter)
             End Function
-
         End Class
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicMiscellaneousReducer.vb

@@ -13,6 +13,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyParameter As Func(Of ParameterSyntax, SemanticModel, OptionSet, CancellationToken, ParameterSyntax) = AddressOf SimplifyParameter
+
         Private Shared Function SimplifyParameter(
             parameter As ParameterSyntax,
             semanticModel As SemanticModel,
@@ -28,6 +30,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return parameter
         End Function
 
+        Private Shared ReadOnly s_simplifyInvocationExpression As Func(Of InvocationExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyInvocationExpression
+
         Private Shared Function SimplifyInvocationExpression(
             invocationExpression As InvocationExpressionSyntax,
             semanticModel As SemanticModel,
@@ -49,6 +53,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return invocationExpression
         End Function
 
+        Private Shared ReadOnly s_simplifyObjectCreationExpression As Func(Of ObjectCreationExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyObjectCreationExpression
+
         Private Shared Function SimplifyObjectCreationExpression(
             objectCreationExpression As ObjectCreationExpressionSyntax,
             semanticModel As SemanticModel,

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicNameReducer.Rewriter.vb

@@ -23,7 +23,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitGenericName(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 
@@ -39,7 +39,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitIdentifierName(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 
@@ -55,7 +55,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitQualifiedName(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 
@@ -71,7 +71,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitMemberAccessExpression(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 
@@ -87,7 +87,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitNullableType(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 
@@ -103,7 +103,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Dim result = SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitArrayType(node),
-                    simplifier:=AddressOf SimplifyName)
+                    simplifier:=s_simplifyName)
 
                 Me._alwaysSimplify = oldAlwaysSimplify
 

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicNameReducer.vb

@@ -16,6 +16,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyName As Func(Of ExpressionSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyName
+
         Private Overloads Shared Function SimplifyName(
             node As ExpressionSyntax,
             semanticModel As SemanticModel,

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicParenthesesReducer.Rewriter.vb

@@ -17,8 +17,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                 Return SimplifyExpression(
                     node,
                     newNode:=MyBase.VisitParenthesizedExpression(node),
-                    simplifier:=AddressOf ReduceParentheses)
+                    simplifier:=s_reduceParentheses)
             End Function
         End Class
     End Class
-End Namespace
+End Namespace
\ No newline at end of file

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicVariableDeclaratorReducer.Rewriter.vb

@@ -19,7 +19,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
                     node,
                     newNode:=MyBase.VisitVariableDeclarator(node),
                     parentNode:=node,
-                    simplifyFunc:=AddressOf SimplifyVariableDeclarator)
+                    simplifyFunc:=s_simplifyVariableDeclarator)
             End Function
         End Class
     End Class

src/Workspaces/VisualBasic/Portable/Simplification/VisualBasicVariableDeclaratorReducer.vb

@@ -15,6 +15,8 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Simplification
             Return New Rewriter(optionSet, cancellationToken)
         End Function
 
+        Private Shared ReadOnly s_simplifyVariableDeclarator As Func(Of VariableDeclaratorSyntax, SemanticModel, OptionSet, CancellationToken, SyntaxNode) = AddressOf SimplifyVariableDeclarator
+
         Private Overloads Shared Function SimplifyVariableDeclarator(
             node As VariableDeclaratorSyntax,
             semanticModel As SemanticModel,