Add tests for #5173

Author: delta-nry

tests/baselines/reference/errorOnInitializerInObjectType.errors.txt

@@ -0,0 +1,17 @@
+tests/cases/compiler/errorOnInitializerInObjectType.ts(2,17): error TS1246: An object type property cannot have an initializer.
+tests/cases/compiler/errorOnInitializerInObjectType.ts(6,17): error TS1246: An object type property cannot have an initializer.
+
+
+==== tests/cases/compiler/errorOnInitializerInObjectType.ts (2 errors) ====
+    interface Foo {
+        bar: number = 5;
+                    ~
+!!! error TS1246: An object type property cannot have an initializer.
+    }
+    
+    var Foo: {
+        bar: number = 5;
+                    ~
+!!! error TS1246: An object type property cannot have an initializer.
+    };
+    

tests/baselines/reference/errorOnInitializerInObjectType.js

@@ -0,0 +1,12 @@
+//// [errorOnInitializerInObjectType.ts]
+interface Foo {
+    bar: number = 5;
+}
+
+var Foo: {
+    bar: number = 5;
+};
+
+
+//// [errorOnInitializerInObjectType.js]
+var Foo;

tests/cases/compiler/errorOnInitializerInObjectType.ts

@@ -0,0 +1,7 @@
+interface Foo {
+    bar: number = 5;
+}
+
+var Foo: {
+    bar: number = 5;
+};