Fix for issues 3729 and 3523

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

Index: compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java
===================================================================
--- compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java	(revision 9267)
+++ compiler/javatests/com/google/dart/compiler/resolver/ResolverTest.java	(working copy)
@@ -19,6 +19,7 @@
 import junit.framework.Assert;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * Basic tests of the resolver.
@@ -1111,6 +1112,17 @@
         TypeErrorCode.NO_SUCH_TYPE);
   }
 
+  public void test_cascadeWithTypeVariable() {
+    resolveAndTest(Joiner.on("\n").join(
+        "class Object {}",
+        "class C<T> {",
+        "  test() {",
+        "    this..T;",
+        "  }",
+        "}"),
+        ResolverErrorCode.TYPE_VARIABLE_NOT_ALLOWED_IN_IDENTIFIER);
+   }
+
   /**
    * When {@link SupertypeResolver} can not find "UnknownA", it uses {@link DynamicType}, which
    * returns {@link DynamicElement}. By itself, this is OK. However when we later try to resolve