Merge pull request #2599 from bashor/patch-2

Fix return type of PullDecl.isRootDecl: void -> boolean

typescript-services/typescriptServices.d.ts

@@ -5640,7 +5640,7 @@ declare module TypeScript {
         public hasBeenBound(): boolean;
         public isSynthesized(): boolean;
         public ast(): AST;
-        public isRootDecl(): void;
+        public isRootDecl(): boolean;
     }
     class RootPullDecl extends PullDecl {
         private _isExternalModule;
@@ -9317,4 +9317,4 @@ declare module TypeScript.Services {
 
 declare module 'typescript-services' {
     export = TypeScript;
-}
+}