Implementation of modified scoping for initializing formals.

tests/language/initializing_formal_scope_test.dart

Index: tests/language/initializing_formal_scope_test.dart
diff --git a/tests/language/initializing_formal_capture_test.dart b/tests/language/initializing_formal_scope_test.dart
similarity index 77%
copy from tests/language/initializing_formal_capture_test.dart
copy to tests/language/initializing_formal_scope_test.dart
index 7ad3f083cc185754bd31b937bbfba57421445846..3c985c77553f7f88155fe3c0a97e3afe765347ef 100644
--- a/tests/language/initializing_formal_capture_test.dart
+++ b/tests/language/initializing_formal_scope_test.dart
@@ -7,13 +7,14 @@
 import "package:expect/expect.dart";
 
 class A {
-  var x, y;
-  A(this.x) : y = (() => x);
+  var x;
+  A(this.x) {
+    // In the body the field is in scope, not the initializing formal.
+    x += 1;
+  }
 }
 
 main() {
   A a = new A(2);
-  a.x = 3;
   Expect.equals(a.x, 3);
-  Expect.equals(a.y(), 2);
 }