Add test case and accept baseline

tests/cases/compiler/enumAssignmentCompat3.ts

@@ -0,0 +1,45 @@
+namespace First {
+    export enum E {
+        a, b, c,
+    }
+}
+namespace Abc {
+    export enum E {
+        a, b, c,
+    }
+    export enum Nope {
+        a, b, c,
+    }
+}
+namespace Abcd {
+    export enum E {
+        a, b, c, d,
+    }
+}
+namespace Ab {
+    export enum E {
+        a, b,
+    }
+}
+namespace Cd {
+    export enum E {
+        c, d,
+    }
+}
+
+var abc: First.E;
+var secondAbc: Abc.E;
+var secondAbcd: Abcd.E;
+var secondAb: Ab.E;
+var secondCd: Cd.E;
+var nope: Abc.Nope;
+abc = secondAbc; // ok
+abc = secondAbcd; // missing 'd'
+abc = secondAb; // ok
+abc = secondCd; // missing 'd'
+abc = nope; // nope!
+secondAbc = abc; // ok
+secondAbcd = abc; // ok
+secondAb = abc; // missing 'c'
+secondCd = abc; // missing 'a' and 'b'
+nope = abc; // nope!