Remove isParameterDeclaration to utilities

src/compiler/checker.ts

@@ -9149,13 +9149,6 @@ module ts {
             }
         }
 
-        function isParameterDeclaration(node: VariableLikeDeclaration) {
-            while (node.kind === SyntaxKind.BindingElement) {
-                node = <VariableLikeDeclaration>node.parent.parent;
-            }
-            return node.kind === SyntaxKind.Parameter;
-        }
-
         // Check that a parameter initializer contains no references to parameters declared to the right of itself
         function checkParameterInitializer(node: VariableLikeDeclaration): void {
             if (getRootDeclaration(node).kind !== SyntaxKind.Parameter) {

src/compiler/utilities.ts

@@ -1149,6 +1149,13 @@ module ts {
         }
         return false;
     }
+
+    export function isParameterDeclaration(node: VariableLikeDeclaration) {
+        while (node.kind === SyntaxKind.BindingElement) {
+            node = <VariableLikeDeclaration>node.parent.parent;
+        }
+        return node.kind === SyntaxKind.Parameter;
+    }
         
     export function nodeStartsNewLexicalEnvironment(n: Node): boolean {
         return isFunctionLike(n) || n.kind === SyntaxKind.ModuleDeclaration || n.kind === SyntaxKind.SourceFile;