Issue 7980. Report problem when type 'dynamic' is shadowed.

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

Index: compiler/java/com/google/dart/compiler/resolver/ResolutionContext.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/ResolutionContext.java b/compiler/java/com/google/dart/compiler/resolver/ResolutionContext.java
index 03e72ff4847ce267bb4e7566504680d5ff39dd9a..78897322e3e6172a0067500572f71fdad6397826 100644
--- a/compiler/java/com/google/dart/compiler/resolver/ResolutionContext.java
+++ b/compiler/java/com/google/dart/compiler/resolver/ResolutionContext.java
@@ -314,13 +314,16 @@ public class ResolutionContext implements ResolutionErrorListener {
    * Interpret this node as a name reference,
    */
   Element resolveName(DartNode node) {
-    if (Elements.isIdentifierName(node, "void")) {
-      return typeProvider.getVoidType().getElement();
-    }
-    if (Elements.isIdentifierName(node, "dynamic")) {
-      return typeProvider.getDynamicType().getElement();
+    Element result = node.accept(new Selector());
+    if (result == null) {
+      if (Elements.isIdentifierName(node, "void")) {
+        return typeProvider.getVoidType().getElement();
+      }
+      if (Elements.isIdentifierName(node, "dynamic")) {
+        return typeProvider.getDynamicType().getElement();
+      }
     }
-    return node.accept(new Selector());
+    return result;
   }
 
   MethodElement declareFunction(DartFunctionExpression node) {