Migrate language block 46 - canonical_const ... char_escape.

tests/language/catch_liveness_test.dart

Index: tests/language/catch_liveness_test.dart
diff --git a/tests/language/catch_liveness_test.dart b/tests/language/catch_liveness_test.dart
deleted file mode 100644
index 59e13a783b23da2e81d7f988fadcb24c8ba1fbb9..0000000000000000000000000000000000000000
--- a/tests/language/catch_liveness_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, 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.
-
-import "package:expect/expect.dart";
-
-@AssumeDynamic()
-@NoInline()
-foo() => 1;
-
-@AssumeDynamic()
-@NoInline()
-throwException() => throw 'x';
-
-main() {
-  var x = 10;
-  var e2 = null;
-  try {
-    var t = foo();
-    throwException();
-    print(t);
-    x = 3;
-  } catch (e) {
-    Expect.equals(10, x);
-    e2 = e;
-  }
-  Expect.equals(10, x);
-  Expect.equals('x', e2);
-}