Turn getters and setters that we know are not intercepted into regular getter and setter calls.

tests/compiler/dart2js/interceptor_test.dart

Index: tests/compiler/dart2js/interceptor_test.dart
===================================================================
--- tests/compiler/dart2js/interceptor_test.dart	(revision 17895)
+++ tests/compiler/dart2js/interceptor_test.dart	(working copy)
@@ -22,6 +22,16 @@
   }
 """;
 
+const String TEST_THREE = r"""
+  class A {
+    var length;
+  }
+  foo(a) {
+    print([]); // Make sure the array class is instantiated.
+    return new A().length + a.length;
+  }
+""";
+
 main() {
   var generated = compile(TEST_ONE, entry: 'foo');
   // Check that the one shot interceptor got converted to a direct
@@ -33,4 +43,11 @@
   generated = compile(TEST_TWO, entry: 'foo');
   Expect.isTrue(generated.contains('\$.\$\$add(a, 42)'));
   Expect.isTrue(generated.contains('myVariableName'));
+
+  // Check that we know when an intercepted getter name does not need
+  // to be intercepted;
+  generated = compile(TEST_THREE, entry: 'foo');
+  Expect.isFalse(generated.contains(r'get$length'));
+  Expect.isTrue(generated.contains(r'$.A$().length'));
+  Expect.isTrue(generated.contains(r'length(a)'));
 }