Handle escaped identifiers

Author: Andy Hanson

src/compiler/types.ts

@@ -571,7 +571,11 @@ namespace ts {
 
     export interface Identifier extends PrimaryExpression {
         kind: SyntaxKind.Identifier;
-        text: string;                                  // Text of identifier (with escapes converted to characters)
+        /**
+         * Text of identifier (with escapes converted to characters).
+         * If the identifier begins with two underscores, this will begin with three.
+         */
+        text: string;
         originalKeywordKind?: SyntaxKind;              // Original syntaxKind which get set so that we can report an error later
         /*@internal*/ autoGenerateKind?: GeneratedIdentifierKind; // Specifies whether to auto-generate the text for an identifier.
         /*@internal*/ autoGenerateId?: number;         // Ensures unique generated identifiers get unique names, but clones get the same name.

src/services/findAllReferences.ts

@@ -694,7 +694,7 @@ namespace ts.FindAllReferences.Core {
         // Compare the length so we filter out strict superstrings of the symbol we are looking for
         switch (node && node.kind) {
             case SyntaxKind.Identifier:
-                return (node as Identifier).text.length === searchSymbolName.length;
+                return unescapeIdentifier((node as Identifier).text).length === searchSymbolName.length;
 
             case SyntaxKind.StringLiteral:
                 return (isLiteralNameOfPropertyDeclarationOrIndexAccess(node) || isNameOfExternalModuleImportOrDeclaration(node)) &&