test rename overhaul: step 8 - language tests

tests/language/src/Prefix16Test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved imported symbols are handled differently in production mode and
-// check modes. In this test, the function myFunc is malformed, because
-// lib12.Library13 is not resolved.
-// In checked mode, the assignment type check throws a run time type error.
-// In production, no assignment type checks are performed.
-
-#library("Prefix16NegativeTest.dart");
-#import("library12.dart", prefix:"lib12");
-
-typedef lib12.Library13 myFunc(lib12.Library13 param);
-
-isCheckedMode() {
-  try {
-    var i = 1;
-    String s = i;
-    return false;
-  } catch(var e) {
-    return true;
-  }
-}
-
-main() {
-  {
-    bool got_type_error = false;
-    try {
-      myFunc i = 0;
-    } catch (TypeError error) {
-      got_type_error = true;
-    }
-    // Type error in checked mode only.
-    Expect.isTrue(got_type_error == isCheckedMode());
-  }
-  {
-    bool got_type_error = false;
-    try {
-      // In production mode, malformed myFunc is mapped to (Dynamic) => Dynamic.
-      Expect.isTrue(((int x) => x) is myFunc);
-    } catch (TypeError error) {
-      got_type_error = true;
-    }
-    // Type error in checked mode only.
-    Expect.isTrue(got_type_error == isCheckedMode());
-  }
-}