Report StaticTypeWarningCode.AMBIGUOUS_IMPORT when used as type annotation.

editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java

Index: editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java
diff --git a/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java
index 7c0c2bbcccd0307bd070b12f8e5c055123e28427..f9346531f5fbe672421b5b3694f79b869b9a30ee 100644
--- a/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java
+++ b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/StaticWarningCodeTest.java
@@ -13,6 +13,7 @@
  */
 package com.google.dart.engine.resolver;
 
+import com.google.dart.engine.error.StaticTypeWarningCode;
 import com.google.dart.engine.error.StaticWarningCode;
 import com.google.dart.engine.source.Source;
 
@@ -423,6 +424,43 @@ public class StaticWarningCodeTest extends ResolverTestCase {
     verify(source);
   }
 
+  public void test_ambiguousImport_typeAnnotation() throws Exception {
+    Source source = addSource(createSource(//
+        "import 'lib1.dart';",
+        "import 'lib2.dart';",
+        "typedef N FT(N p);",
+        "N f(N p) {",
+        "  N v;",
+        "}",
+        "class A {",
+        "  N m() {}",
+        "}",
+        "class B<T extends N> {}"));
+    addSource("/lib1.dart", "class N {}");
+    addSource("/lib2.dart", "class N {}");
+    resolve(source);
+    assertErrors(
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT,
+        StaticTypeWarningCode.AMBIGUOUS_IMPORT);
+  }
+
+  public void test_ambiguousImport_typeArgument_annotation() throws Exception {
+    Source source = addSource(createSource(//
+        "import 'lib1.dart';",
+        "import 'lib2.dart';",
+        "class A<T> {}",
+        "A<N> f() {}"));
+    addSource("/lib1.dart", "class N {}");
+    addSource("/lib2.dart", "class N {}");
+    resolve(source);
+    assertErrors(StaticTypeWarningCode.AMBIGUOUS_IMPORT);
+  }
+
   public void test_assignmentToFinal_instanceVariable() throws Exception {
     Source source = addSource(createSource(//
         "class A {",