Issue 2478. Support for 'factory lib.Interface.namedConstructor()'

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 3f05faadfe9d17889841a8bfd91d53a1cf76bc68..aaddf2e5d61c88ba52345e3248b655a76a77b45c 100644
--- a/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
+++ b/compiler/javatests/com/google/dart/compiler/end2end/inc/IncrementalCompilation2Test.java
@@ -750,13 +750,47 @@ public class IncrementalCompilation2Test extends CompilerTestCase {
             "  }",
             "}",
             ""));
-    // do compile, no errors expected
+    // do compile, check errors
     compile();
     assertErrors(
         errors,
         errEx(ResolverErrorCode.CANNOT_ACCESS_METHOD, 6, 5, 7),
         errEx(ResolverErrorCode.CANNOT_ACCESS_METHOD, 9, 11, 7));
   }
+  
+  /**
+   * When we resolve factory constructors, we should check if "lib" is library prefix, it is not
+   * always have to be name of type.  
+   * <p>
+   * http://code.google.com/p/dart/issues/detail?id=2478
+   */
+  public void test_factoryClass_fromPrefixImportedLibrary() throws Exception {
+    appSource.setContent(
+        "A.dart",
+        makeCode(
+            "// filler filler filler filler filler filler filler filler filler filler filler",
+            "#library('A');",
+            "#import('" + APP + "');",
+            "interface I default A {",
+            "  I();",
+            "  I.named();",
+            "}",
+            ""));
+    appSource.setContent(
+        APP,
+        makeCode(
+            "// filler filler filler filler filler filler filler filler filler filler filler",
+            "#library('application');",
+            "#import('A.dart', prefix: 'lib');",
+            "class A {",
+            "  factory lib.I() {}",
+            "  factory lib.I.named() {}",
+            "}",
+            ""));
+    // do compile, no errors expected
+    compile();
+    assertErrors(errors);
+  }
 
   /**
    * <p>