Report errors and warnings for hiding elements, issue 572.

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

Index: compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java b/compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java
index c805912292fa821c0f636b8b515d0a98ae216503..a005ecca92073f8cbc89d64a19344729ef756f66 100644
--- a/compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java
+++ b/compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java
@@ -596,7 +596,7 @@ public class ResolverTest extends ResolverTestCase {
         "class Object {}",
         "class Foo<T> {}",
         "class MyClass {",
-        "  foo() {",
+        "  bar() {",
         "    Foo<Unknown> foo;",
         "  }",
         "}"),
@@ -608,7 +608,7 @@ public class ResolverTest extends ResolverTestCase {
         "class Object {}",
         "class Foo<T> {}",
         "class MyClass {",
-        "  foo() {",
+        "  bar() {",
         "    Foo<Object, Object> foo;",
         "  }",
         "}"),
@@ -620,7 +620,7 @@ public class ResolverTest extends ResolverTestCase {
         "class Object {}",
         "class Foo {}",
         "class MyClass {",
-        "  foo() {",
+        "  bar() {",
         "    Foo<Object> foo;",
         "  }",
         "}"),
@@ -856,6 +856,7 @@ public class ResolverTest extends ResolverTestCase {
         "    new Foo<Param>();",
         "  }",
         "}"),
+        ResolverErrorCode.DUPLICATE_LOCAL_VARIABLE_WARNING,
         TypeErrorCode.NOT_A_TYPE,
         ResolverErrorCode.NO_SUCH_TYPE);
   }