Add a 'None' member to SymbolFlags enum.

src/compiler/binder.ts

@@ -480,7 +480,6 @@ module ts {
 
         function bind(node: Node): void {
             node.parent = parent;
-            
             switch (node.kind) {
                 case SyntaxKind.TypeParameter:
                     declareSymbolForDeclarationAndBindChildren(<Declaration>node, SymbolFlags.TypeParameter, SymbolFlags.TypeParameterExcludes);

src/compiler/types.ts

@@ -1279,6 +1279,7 @@ module ts {
     }
 
     export const enum SymbolFlags {
+        None                    = 0,
         FunctionScopedVariable  = 0x00000001,  // Variable (var) or parameter
         BlockScopedVariable     = 0x00000002,  // A block-scoped variable (let or const)
         Property                = 0x00000004,  // Property or enum member