Disable unit tests depending on having export statements not module t…

…op-level.

We should be able to reenable these after moving module transpilation to come
after TypeScript transpilation.

Since we don't currently support outputting ES6 module code, this shouldn't
break anyone.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=157640865

test/com/google/javascript/jscomp/Es6TypedToEs6ConverterTest.java

@@ -435,13 +435,16 @@ public void testAmbientNamespace() {
         "export declare namespace foo.bar {}",
         "export /** @const */ var foo = {}; /** @const */ foo.bar = {};");
 
-    testDts(
-        "export declare namespace foo.bar { export var x; }",
-        "export /** @const */ var foo = {}; /** @const */ foo.bar = {}; foo.bar.x;");
-
     testDts(
         "export declare namespace foo.bar {} export declare namespace foo.bar {}",
         "export /** @const */ var foo = {}; /** @const */ foo.bar = {};");
+  }
+
+  public void disable_testAmbientNamespace() {
+    // TODO(blickly): Reenable these once module rewriting happens after Typescript transpilation.
+    testDts(
+        "export declare namespace foo.bar { export var x; }",
+        "export /** @const */ var foo = {}; /** @const */ foo.bar = {}; foo.bar.x;");
 
     testDts(
         "export declare namespace foo { var i, j, k; }",
@@ -502,7 +505,8 @@ public void testExportAmbientDeclaration() {
         Es6TypedToEs6Converter.NON_AMBIENT_NAMESPACE_NOT_SUPPORTED);
   }
 
-  public void testExportDeclarationInAmbientNamespace() {
+  public void disable_testExportDeclarationInAmbientNamespace() {
+    // TODO(blickly): Reenable these once module rewriting happens after Typescript transpilation.
     testDts(
         "declare namespace foo { export var i, j, k; }",
         "/** @const */ var foo = {}; foo.i; foo.j; foo.k;");