added IBaseCompoundAssignmentExpression

src/Compilers/Core/Portable/Generated/Operations.xml.Generated.cs

@@ -778,7 +778,7 @@ public LazyCatchClause(Lazy<IBlockStatement> handler, ITypeSymbol caughtType, La
     /// <summary>
     /// Represents an assignment expression that includes a binary operation.
     /// </summary>
-    internal abstract partial class BaseCompoundAssignmentExpression : BaseAssignmentExpression, IHasOperatorMethodExpression, ICompoundAssignmentExpression
+    internal abstract partial class BaseCompoundAssignmentExpression : BaseAssignmentExpression, IHasOperatorMethodExpression, IBaseCompoundAssignmentExpression
     {
         protected BaseCompoundAssignmentExpression(BinaryOperationKind binaryOperationKind, bool usesOperatorMethod, IMethodSymbol operatorMethod, OperationKind kind, bool isInvalid, SyntaxNode syntax, ITypeSymbol type, Optional<object> constantValue) :
             base(kind, isInvalid, syntax, type, constantValue)

src/Compilers/Core/Portable/Operations/ICompoundAssignmentExpression.cs

@@ -5,18 +5,29 @@
 namespace Microsoft.CodeAnalysis.Semantics
 {
     /// <summary>
-    /// Represents an assignment expression that includes a binary operation.
+    /// Represents a base interface for assignment expression that includes a binary operation.
     /// </summary>
     /// <remarks>
     /// This interface is reserved for implementation by its associated APIs. We reserve the right to
     /// change it in the future.
     /// </remarks>
-    public interface ICompoundAssignmentExpression : IBaseAssignmentExpression, IHasOperatorMethodExpression
+    public interface IBaseCompoundAssignmentExpression : IBaseAssignmentExpression, IHasOperatorMethodExpression
     {
         /// <summary>
         /// Kind of binary operation.
         /// </summary>
         BinaryOperationKind BinaryOperationKind { get; }
     }
+
+    /// <summary>
+    /// Represents an assignment expression that includes a binary operation.
+    /// </summary>
+    /// <remarks>
+    /// This interface is reserved for implementation by its associated APIs. We reserve the right to
+    /// change it in the future.
+    /// </remarks>
+    public interface ICompoundAssignmentExpression : IBaseCompoundAssignmentExpression
+    {
+    }
 }
 

src/Compilers/Core/Portable/Operations/IIncrementExpression.cs

@@ -11,7 +11,7 @@ namespace Microsoft.CodeAnalysis.Semantics
     /// This interface is reserved for implementation by its associated APIs. We reserve the right to
     /// change it in the future.
     /// </remarks>
-    public interface IIncrementExpression : ICompoundAssignmentExpression
+    public interface IIncrementExpression : IBaseCompoundAssignmentExpression
     {
         /// <summary>
         /// Kind of increment.