Merge pull request #13505 from Microsoft/fix13504

Emit 'object' type in declaration emitter

tests/cases/conformance/types/nonPrimitive/nonPrimitiveAsProperty.ts

@@ -1,3 +1,4 @@
+// @declaration: true
 interface WithNonPrimitive {
     foo: object
 }

tests/cases/conformance/types/nonPrimitive/nonPrimitiveInFunction.ts

@@ -1,3 +1,4 @@
+// @declaration: true
 function takeObject(o: object) {}
 function returnObject(): object {
     return {};

tests/cases/conformance/types/nonPrimitive/nonPrimitiveInGeneric.ts

@@ -1,3 +1,4 @@
+// @declaration: true
 function generic<T>(t: T) {
     var o: object = t; // expect error
 }

tests/cases/conformance/types/nonPrimitive/nonPrimitiveUnionIntersection.ts

@@ -1,3 +1,4 @@
+// @declaration: true
 var a: object & string = ""; // error
 var b: object | string = ""; // ok
 a = b; // error