Added failing fourslash test.

tests/cases/fourslash/contextuallyTypedObjectLiteralMethodDeclarationParam01.ts

@@ -0,0 +1,32 @@
+/// <reference path="fourslash.ts" />
+
+// @noImplicitAny: true
+
+////interface A {
+////    numProp: number;
+////}
+////
+////interface B  {
+////    strProp: string;
+////}
+////
+////interface Foo {
+////    method1(arg: A): void;
+////    method2(arg: B): void;
+////}
+////
+////function getFoo1(): Foo {
+////    return {
+////        method1(/*param1*/arg) {
+////            arg.numProp = 10;
+////        },
+////        method2(/*param2*/arg) {
+////            arg.strProp = "hello";
+////        }
+////    }
+////}
+
+goTo.marker("param1");
+verify.quickInfoIs("(parameter) arg: A")
+goTo.marker("param2");
+verify.quickInfoIs("(parameter) arg: B")