Added test case.

tests/cases/compiler/errorForUsingPropertyOfTypeAsType01.ts

@@ -0,0 +1,37 @@
+namespace Test1 {
+    export interface Foo {
+        bar: string;
+    }
+
+    var x: Foo.bar = "";
+}
+
+namespace Test2 {
+    export class Foo {
+        bar: string;
+    }
+
+    var x: Foo.bar = "";
+}
+
+namespace Test3 {
+    export type Foo = {
+        bar: string;
+    }
+
+    var x: Foo.bar = "";
+}
+
+namespace Test4 {
+    export type Foo = { bar: number }
+                    | { bar: string }
+
+    var x: Foo.bar = "";
+}
+
+namespace Test5 {
+    export type Foo = { bar: number }
+                    | { wat: string }
+
+    var x: Foo.bar = "";
+}