Issue 3793. Fix for function expressions with a parameter of the same name

compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java

Index: compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java b/compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java
index e92aaa5519630bfacae95e2ea78f31aef0dce21e..8a043eff5d937ee973bd4de25828ea1be3f150ca 100644
--- a/compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java
+++ b/compiler/javatests/com/google/dart/compiler/resolver/ResolverCompilerTest.java
@@ -897,6 +897,22 @@ public class ResolverCompilerTest extends CompilerTestCase {
   }
 
   /**
+   * <p>
+   * http://code.google.com/p/dart/issues/detail?id=3793
+   */
+  public void test_functionLiteral_parameterShadowsParentLiteral() throws Exception {
+    AnalyzeLibraryResult libraryResult = analyzeLibrary(
+        "// filler filler filler filler filler filler filler filler filler filler",
+        "main() {",
+        "  (foo(foo)=>foo)(1);",
+        "}",
+        "");
+    assertErrors(
+        libraryResult.getErrors(),
+        errEx(ResolverErrorCode.DUPLICATE_PARAMETER_WARNING, 3, 8, 3));
+  }
+
+  /**
    * Asserts that given nodes have same not <code>null</code> {@link Element}.
    */
   private static void assertDeclarationNameElement(