Issue 6077. warn when importing dart:mirrors

compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java

Index: compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
diff --git a/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java b/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
index 8f586e5bb3c488b911aff89fe0ba86039cc40daa..85c4470623ced6886564fc01b986289807aeb718 100644
--- a/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
+++ b/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
@@ -1407,6 +1407,20 @@ public class IncrementalCompilation2Test extends CompilerTestCase {
     compile();
     assertErrors(errors);
   }
+  
+  /**
+   * <p>
+   * http://code.google.com/p/dart/issues/detail?id=6077
+   */
+  public void test_dartMirrors_notFullyImplemented() throws Exception {
+    appSource.setContent(
+        APP,
+        makeCode("// filler filler filler filler filler filler filler filler filler filler filler",
+            "import 'dart:mirrors';"));
+    // do compile, no errors expected
+    compile();
+    assertErrors(errors, errEx(DartCompilerErrorCode.MIRRORS_NOT_FULLY_IMPLEMENTED, 2, 1, 22));
+  }
 
   private void assertAppBuilt() {
     didWrite(APP, EXTENSION_DEPS);