diff --git a/src/Compilers/CSharp/Portable/PublicAPI.Unshipped.txt b/src/Compilers/CSharp/Portable/PublicAPI.Unshipped.txt
index 25c01438035d9c175666511ce62ab6cff1b208cb..6e5050161ca456b8894679546a39acb0dde7bf2f 100644
--- a/src/Compilers/CSharp/Portable/PublicAPI.Unshipped.txt
+++ b/src/Compilers/CSharp/Portable/PublicAPI.Unshipped.txt
@@ -9,6 +9,9 @@ Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions.CSharpCompilationOptions(
 Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions.WithDeterministic(bool deterministic) -> Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions
 Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions.WithReportSuppressedDiagnostics(bool reportSuppressedDiagnostics) -> Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions
 Microsoft.CodeAnalysis.CSharp.CSharpParseOptions.WithKind(Microsoft.CodeAnalysis.SourceCodeKind kind) -> Microsoft.CodeAnalysis.CSharp.CSharpParseOptions
+Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo
+Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo.PreviousScriptCompilation.get -> Microsoft.CodeAnalysis.CSharp.CSharpCompilation
+Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo.WithPreviousScriptCompilation(Microsoft.CodeAnalysis.CSharp.CSharpCompilation compilation) -> Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.Condition.get -> Microsoft.CodeAnalysis.CSharp.Syntax.ExpressionSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.Pattern.get -> Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax
@@ -19,9 +22,6 @@ Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.WithCondition(Microsof
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.WithKeyword(Microsoft.CodeAnalysis.SyntaxToken keyword) -> Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.WithPattern(Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax pattern) -> Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax.WithWhenKeyword(Microsoft.CodeAnalysis.SyntaxToken whenKeyword) -> Microsoft.CodeAnalysis.CSharp.Syntax.CaseMatchLabelSyntax
-Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo
-Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo.PreviousScriptCompilation.get -> Microsoft.CodeAnalysis.CSharp.CSharpCompilation
-Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo.WithPreviousScriptCompilation(Microsoft.CodeAnalysis.CSharp.CSharpCompilation compilation) -> Microsoft.CodeAnalysis.CSharp.CSharpScriptCompilationInfo
 Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax.GetLoadDirectives() -> System.Collections.Generic.IList<Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax>
 Microsoft.CodeAnalysis.CSharp.Syntax.ConstantPatternSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.ConstantPatternSyntax.Expression.get -> Microsoft.CodeAnalysis.CSharp.Syntax.ExpressionSyntax
@@ -75,13 +75,6 @@ Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.WithParameterL
 Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.WithReturnType(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax returnType) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.WithSemicolonToken(Microsoft.CodeAnalysis.SyntaxToken semicolonToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.WithTypeParameterList(Microsoft.CodeAnalysis.CSharp.Syntax.TypeParameterListSyntax typeParameterList) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.ExclamationToken.get -> Microsoft.CodeAnalysis.SyntaxToken
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.Update(Microsoft.CodeAnalysis.SyntaxToken hashToken, Microsoft.CodeAnalysis.SyntaxToken exclamationToken, Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken, bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithEndOfDirectiveToken(Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithExclamationToken(Microsoft.CodeAnalysis.SyntaxToken exclamationToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithHashToken(Microsoft.CodeAnalysis.SyntaxToken hashToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithIsActive(bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax.AddPatternListSubPatterns(params Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax[] items) -> Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax
@@ -97,6 +90,13 @@ Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Type.get -> Microsof
 Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Update(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type, Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternListSyntax patternList) -> Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.WithPatternList(Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternListSyntax patternList) -> Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.WithType(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type) -> Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.ExclamationToken.get -> Microsoft.CodeAnalysis.SyntaxToken
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.Update(Microsoft.CodeAnalysis.SyntaxToken hashToken, Microsoft.CodeAnalysis.SyntaxToken exclamationToken, Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken, bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithEndOfDirectiveToken(Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithExclamationToken(Microsoft.CodeAnalysis.SyntaxToken exclamationToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithHashToken(Microsoft.CodeAnalysis.SyntaxToken hashToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.WithIsActive(bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax.AddSubPatterns(params Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax[] items) -> Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax
 Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax.CloseBraceToken.get -> Microsoft.CodeAnalysis.SyntaxToken
@@ -140,9 +140,10 @@ Microsoft.CodeAnalysis.CSharp.SyntaxKind.IsPatternExpression = 8657 -> Microsoft
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.LoadDirectiveTrivia = 8923 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.LoadKeyword = 8485 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.LocalFunctionStatement = 8830 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
-Microsoft.CodeAnalysis.CSharp.SyntaxKind.ShebangDirectiveTrivia = 8922 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
+Microsoft.CodeAnalysis.CSharp.SyntaxKind.MatchKeyword = 8438 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.PropertyPattern = 8554 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.RecursivePattern = 8661 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
+Microsoft.CodeAnalysis.CSharp.SyntaxKind.ShebangDirectiveTrivia = 8922 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.SubPropertyPattern = 8555 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.SubPropertyPatternList = 8556 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
 Microsoft.CodeAnalysis.CSharp.SyntaxKind.SubRecursivePattern = 8662 -> Microsoft.CodeAnalysis.CSharp.SyntaxKind
@@ -155,9 +156,9 @@ override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitDeclarationPatt
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitIsPatternExpression(Microsoft.CodeAnalysis.CSharp.Syntax.IsPatternExpressionSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitLoadDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitLocalFunctionStatement(Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
-override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
+override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitSubPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitSubPropertyPatternList(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
 override Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitSubRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternSyntax node) -> Microsoft.CodeAnalysis.SyntaxNode
@@ -180,16 +181,15 @@ override Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax.HashToke
 override Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax.IsActive.get -> bool
 override Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
 override Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
+override Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
+override Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
+override Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
+override Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
 override Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
 override Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
 override Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.EndOfDirectiveToken.get -> Microsoft.CodeAnalysis.SyntaxToken
 override Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.HashToken.get -> Microsoft.CodeAnalysis.SyntaxToken
 override Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax.IsActive.get -> bool
-static Microsoft.CodeAnalysis.CSharp.CSharpCompilation.CreateScriptCompilation(string assemblyName, Microsoft.CodeAnalysis.SyntaxTree syntaxTree = null, System.Collections.Generic.IEnumerable<Microsoft.CodeAnalysis.MetadataReference> references = null, Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions options = null, Microsoft.CodeAnalysis.CSharp.CSharpCompilation previousScriptCompilation = null, System.Type returnType = null, System.Type globalsType = null) -> Microsoft.CodeAnalysis.CSharp.CSharpCompilation
-override Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
-override Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
-override Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
-override Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
 override Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
 override Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
 override Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
@@ -200,6 +200,7 @@ override Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternSyntax.Accept(M
 override Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
 override Microsoft.CodeAnalysis.CSharp.Syntax.WildcardPatternSyntax.Accept(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor visitor) -> void
 override Microsoft.CodeAnalysis.CSharp.Syntax.WildcardPatternSyntax.Accept<TResult>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult> visitor) -> TResult
+static Microsoft.CodeAnalysis.CSharp.CSharpCompilation.CreateScriptCompilation(string assemblyName, Microsoft.CodeAnalysis.SyntaxTree syntaxTree = null, System.Collections.Generic.IEnumerable<Microsoft.CodeAnalysis.MetadataReference> references = null, Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions options = null, Microsoft.CodeAnalysis.CSharp.CSharpCompilation previousScriptCompilation = null, System.Type returnType = null, System.Type globalsType = null) -> Microsoft.CodeAnalysis.CSharp.CSharpCompilation
 static Microsoft.CodeAnalysis.CSharp.SyntaxExtensions.NormalizeWhitespace(this Microsoft.CodeAnalysis.SyntaxToken token, string indentation = "    ", string eol = "\r\n", bool elasticTrivia = false) -> Microsoft.CodeAnalysis.SyntaxToken
 static Microsoft.CodeAnalysis.CSharp.SyntaxExtensions.NormalizeWhitespace(this Microsoft.CodeAnalysis.SyntaxToken token, string indentation, bool elasticTrivia) -> Microsoft.CodeAnalysis.SyntaxToken
 static Microsoft.CodeAnalysis.CSharp.SyntaxExtensions.NormalizeWhitespace(this Microsoft.CodeAnalysis.SyntaxTriviaList list, string indentation = "    ", string eol = "\r\n", bool elasticTrivia = false) -> Microsoft.CodeAnalysis.SyntaxTriviaList
@@ -217,12 +218,12 @@ static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.LocalFunctionStatement(Micros
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.LocalFunctionStatement(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax returnType, string identifier) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.LocalFunctionStatement(Microsoft.CodeAnalysis.SyntaxTokenList modifiers, Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax returnType, Microsoft.CodeAnalysis.SyntaxToken identifier, Microsoft.CodeAnalysis.CSharp.Syntax.TypeParameterListSyntax typeParameterList, Microsoft.CodeAnalysis.CSharp.Syntax.ParameterListSyntax parameterList, Microsoft.CodeAnalysis.SyntaxList<Microsoft.CodeAnalysis.CSharp.Syntax.TypeParameterConstraintClauseSyntax> constraintClauses, Microsoft.CodeAnalysis.CSharp.Syntax.BlockSyntax body, Microsoft.CodeAnalysis.CSharp.Syntax.ArrowExpressionClauseSyntax expressionBody) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.LocalFunctionStatement(Microsoft.CodeAnalysis.SyntaxTokenList modifiers, Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax returnType, Microsoft.CodeAnalysis.SyntaxToken identifier, Microsoft.CodeAnalysis.CSharp.Syntax.TypeParameterListSyntax typeParameterList, Microsoft.CodeAnalysis.CSharp.Syntax.ParameterListSyntax parameterList, Microsoft.CodeAnalysis.SyntaxList<Microsoft.CodeAnalysis.CSharp.Syntax.TypeParameterConstraintClauseSyntax> constraintClauses, Microsoft.CodeAnalysis.CSharp.Syntax.BlockSyntax body, Microsoft.CodeAnalysis.CSharp.Syntax.ArrowExpressionClauseSyntax expressionBody, Microsoft.CodeAnalysis.SyntaxToken semicolonToken) -> Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax
-static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.ShebangDirectiveTrivia(Microsoft.CodeAnalysis.SyntaxToken hashToken, Microsoft.CodeAnalysis.SyntaxToken exclamationToken, Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken, bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
-static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.ShebangDirectiveTrivia(bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.PropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type) -> Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.PropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type, Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax patternList) -> Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.RecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type) -> Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.RecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.TypeSyntax type, Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternListSyntax patternList) -> Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax
+static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.ShebangDirectiveTrivia(Microsoft.CodeAnalysis.SyntaxToken hashToken, Microsoft.CodeAnalysis.SyntaxToken exclamationToken, Microsoft.CodeAnalysis.SyntaxToken endOfDirectiveToken, bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
+static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.ShebangDirectiveTrivia(bool isActive) -> Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.SubPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.IdentifierNameSyntax left, Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax pattern) -> Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.SubPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.IdentifierNameSyntax left, Microsoft.CodeAnalysis.SyntaxToken isKeyword, Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax pattern) -> Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax
 static Microsoft.CodeAnalysis.CSharp.SyntaxFactory.SubPropertyPattern(string left, Microsoft.CodeAnalysis.CSharp.Syntax.PatternSyntax pattern) -> Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax
@@ -240,9 +241,9 @@ virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitDeclarationPatter
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitIsPatternExpression(Microsoft.CodeAnalysis.CSharp.Syntax.IsPatternExpressionSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitLoadDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitLocalFunctionStatement(Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax node) -> void
-virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax node) -> void
+virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitSubPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitSubPropertyPatternList(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax node) -> void
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor.VisitSubRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternSyntax node) -> void
@@ -254,9 +255,9 @@ virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitDeclarat
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitIsPatternExpression(Microsoft.CodeAnalysis.CSharp.Syntax.IsPatternExpressionSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitLoadDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.LoadDirectiveTriviaSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitLocalFunctionStatement(Microsoft.CodeAnalysis.CSharp.Syntax.LocalFunctionStatementSyntax node) -> TResult
-virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.PropertyPatternSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.RecursivePatternSyntax node) -> TResult
+virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitShebangDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.ShebangDirectiveTriviaSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitSubPropertyPattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitSubPropertyPatternList(Microsoft.CodeAnalysis.CSharp.Syntax.SubPropertyPatternListSyntax node) -> TResult
 virtual Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<TResult>.VisitSubRecursivePattern(Microsoft.CodeAnalysis.CSharp.Syntax.SubRecursivePatternSyntax node) -> TResult
diff --git a/src/Compilers/CSharp/Portable/Syntax/Syntax.xml b/src/Compilers/CSharp/Portable/Syntax/Syntax.xml
index dfbaedf3f7eab1b7308e1a8187f8d06d303780cd..c6f671dffd1c44b72bad2fed8721c8730e6dd4f5 100644
--- a/src/Compilers/CSharp/Portable/Syntax/Syntax.xml
+++ b/src/Compilers/CSharp/Portable/Syntax/Syntax.xml
@@ -1598,6 +1598,35 @@
       <summary>Creates an IsPatternExpressionSyntax node.</summary>
     </FactoryComment>
   </Node>
+  <Node Name="MatchExpressionSyntax" Base="ExpressionSyntax">
+    <Kind Name="MatchExpression"/>
+    <Field Name="Left" Type="ExpressionSyntax" />
+    <Field Name="MatchToken" Type="SyntaxToken">
+      <Kind Name="MatchKeyword"/>
+    </Field>>
+    <Field Name="OpenParenToken" Type="SyntaxToken">
+      <Kind Name="OpenParenToken"/>
+    </Field>
+    <Field Name="Sections" Type="SyntaxList&lt;MatchSectionSyntax&gt;" />
+    <Field Name="CloseParenToken" Type="SyntaxToken">
+      <Kind Name="CloseParenToken"/>
+    </Field>
+  </Node>
+  <Node Name="MatchSectionSyntax" Base="CSharpSyntaxNode">
+    <Kind Name="MatchSection" />
+    <Field Name="CaseKeyword" Type="SyntaxToken">
+      <Kind Name="CaseKeyword"/>
+    </Field>
+    <Field Name="Pattern" Type="PatternSyntax" />
+    <Field Name="WhenKeyword" Type="SyntaxToken" Optional="true">
+      <Kind Name="WhenKeyword"/>
+    </Field>
+    <Field Name="Condition" Type="ExpressionSyntax" Optional="true" />
+    <Field Name="ColonToken" Type="SyntaxToken">
+      <Kind Name="ColonToken"/>
+    </Field>
+    <Field Name="Expression" Type="ExpressionSyntax" />
+  </Node>
   <AbstractNode Name="PatternSyntax" Base="CSharpSyntaxNode" />
   <Node Name="DeclarationPatternSyntax" Base="PatternSyntax">
     <Kind Name="DeclarationPattern" />
diff --git a/src/Compilers/CSharp/Portable/Syntax/SyntaxKind.cs b/src/Compilers/CSharp/Portable/Syntax/SyntaxKind.cs
index 8da879fb790fe7e3c30b342e0eea6da8e1748c35..df34dc588a0c52114ab13079ae35174da3e6c92e 100644
--- a/src/Compilers/CSharp/Portable/Syntax/SyntaxKind.cs
+++ b/src/Compilers/CSharp/Portable/Syntax/SyntaxKind.cs
@@ -192,6 +192,7 @@ public enum SyntaxKind : ushort
         AsyncKeyword = 8435,
         AwaitKeyword = 8436,
         WhenKeyword = 8437,
+        MatchKeyword = 8438,
 
         // additional preprocessor keywords
         ElifKeyword = 8467,
@@ -548,5 +549,7 @@ public enum SyntaxKind : ushort
 
         ShebangDirectiveTrivia = 8922,
         LoadDirectiveTrivia = 8923,
+        MatchSection = 8924,
+        MatchExpression = 8925,
     }
 }
diff --git a/src/Compilers/CSharp/Portable/Syntax/SyntaxKindFacts.cs b/src/Compilers/CSharp/Portable/Syntax/SyntaxKindFacts.cs
index e86f713efbeae563bc3b60622e4bf2d0092e56fd..3b1a8de5703710b09ec64056c672d98d3093b555 100644
--- a/src/Compilers/CSharp/Portable/Syntax/SyntaxKindFacts.cs
+++ b/src/Compilers/CSharp/Portable/Syntax/SyntaxKindFacts.cs
@@ -1033,7 +1033,7 @@ public static SyntaxKind GetPreprocessorKeywordKind(string text)
 
         public static IEnumerable<SyntaxKind> GetContextualKeywordKinds()
         {
-            for (int i = (int)SyntaxKind.YieldKeyword; i <= (int)SyntaxKind.WhenKeyword; i++)
+            for (int i = (int)SyntaxKind.YieldKeyword; i <= (int)SyntaxKind.MatchKeyword; i++)
             {
                 yield return (SyntaxKind)i;
             }
@@ -1076,6 +1076,7 @@ public static bool IsContextualKeyword(SyntaxKind kind)
                 case SyntaxKind.AsyncKeyword:
                 case SyntaxKind.AwaitKeyword:
                 case SyntaxKind.WhenKeyword:
+                case SyntaxKind.MatchKeyword:
                     return true;
                 default:
                     return false;
@@ -1175,6 +1176,8 @@ public static SyntaxKind GetContextualKeywordKind(string text)
                     return SyntaxKind.WhenKeyword;
                 case "nameof":
                     return SyntaxKind.NameOfKeyword;
+                case "match":
+                    return SyntaxKind.MatchKeyword;
                 default:
                     return SyntaxKind.None;
             }
@@ -1578,6 +1581,8 @@ public static string GetText(SyntaxKind kind)
                     return "$\"";
                 case SyntaxKind.InterpolatedStringEndToken:
                     return "\"";
+                case SyntaxKind.MatchKeyword:
+                    return "match";
                 default:
                     return string.Empty;
             }