Use Element instead of Symbol.

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

Index: compiler/javatests/com/google/dart/compiler/resolver/ResolverTestCase.java
diff --git a/compiler/javatests/com/google/dart/compiler/resolver/ResolverTestCase.java b/compiler/javatests/com/google/dart/compiler/resolver/ResolverTestCase.java
index a001ba19b4d08a8178448cf0efaffc593fcc5376..98fcb20f1ea6dbcae429acfcacd979009789c90d 100644
--- a/compiler/javatests/com/google/dart/compiler/resolver/ResolverTestCase.java
+++ b/compiler/javatests/com/google/dart/compiler/resolver/ResolverTestCase.java
@@ -134,7 +134,7 @@ abstract class ResolverTestCase extends TestCase {
   }
 
   /**
-   * Look for  DartIdentifier nodes in the tree whose symbols are null.  They should all either
+   * Look for  DartIdentifier nodes in the tree whose elements are null.  They should all either
    * be resolved, or marked as an unresolved element.
    */
   static class ResolverAuditVisitor extends ASTVisitor<Void> {
@@ -143,8 +143,8 @@ abstract class ResolverTestCase extends TestCase {
     @Override
     public Void visitIdentifier(DartIdentifier node) {
 
-      if (node.getSymbol() == null) {
-        failures.add("Identifier: " + node.getTargetName() + " has null symbol @ ("
+      if (node.getElement() == null) {
+        failures.add("Identifier: " + node.getName() + " has null element @ ("
             + node.getSourceLine() + ":" + node.getSourceColumn() + ")");
       }
       return null;
@@ -159,7 +159,7 @@ abstract class ResolverTestCase extends TestCase {
       root.accept(visitor);
       List<String> results = visitor.getFailures();
       if (results.size() > 0) {
-        StringBuilder out = new StringBuilder("Missing symbols found in AST\n");
+        StringBuilder out = new StringBuilder("Missing elements found in AST\n");
         Joiner.on("\n").appendTo(out, results);
         fail(out.toString());
       }