Issue 3985. Tweaks for warning messages

compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java

Index: compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java b/compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java
index 5a40c1e3b8a9c034788e97d3ab99da3f3a5d3b04..840a1a2050f2ad02fb6542178b3c2ba4822afe7c 100644
--- a/compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java
+++ b/compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java
@@ -83,18 +83,18 @@ public enum ResolverErrorCode implements ErrorCode {
   DUPLICATE_INITIALIZATION("Duplicate initialization of '%s'"),
   DUPLICATE_FUNCTION_EXPRESSION("Duplicate function expression '%s'"),
   DUPLICATE_FUNCTION_EXPRESSION_WARNING(ErrorSeverity.WARNING,
-      "Function expression '%s' is hiding '%s' at %s"),
+      "Function expression '%s' is hiding %s at %s"),
   DUPLICATE_LABEL_IN_SWITCH_STATEMENT("Duplicate label in switch statement"),
   DUPLICATE_LOCAL_VARIABLE_ERROR("Duplicate local variable '%s'"),
   DUPLICATE_LOCAL_VARIABLE_WARNING(ErrorSeverity.WARNING,
-      "Local variable '%s' is hiding '%s' at %s"),
+      "Local variable '%s' is hiding %s at %s"),
   DUPLICATE_MEMBER("Duplicate member '%s'"),
   DUPLICATE_NAMED_ARGUMENT("Duplicate named parameter argument"),
   DUPLICATE_PARAMETER("Duplicate parameter '%s'"),
-  DUPLICATE_PARAMETER_WARNING(ErrorSeverity.WARNING, "Parameter '%s' is hiding '%s' at %s"),
-  DUPLICATE_TOP_LEVEL_DECLARATION("duplicate top-level declaration '%s' at %s"),
+  DUPLICATE_PARAMETER_WARNING(ErrorSeverity.WARNING, "Parameter '%s' is hiding %s at %s"),
+  DUPLICATE_TOP_LEVEL_DECLARATION("duplicate top-level declaration %s at %s"),
   DUPLICATE_TYPE_VARIABLE("Duplicate type variable '%s'"),
-  DUPLICATE_TYPE_VARIABLE_WARNING(ErrorSeverity.WARNING, "Type variable '%s' is hiding '%s' at %s"),
+  DUPLICATE_TYPE_VARIABLE_WARNING(ErrorSeverity.WARNING, "Type variable '%s' is hiding %s at %s"),
   // TODO(zundel): error message needs JUnit test, (reachable code?)
   EXPECTED_AN_INSTANCE_FIELD_IN_SUPER_CLASS(
       "expected an instance field in the super class, but got %s"),