dart2js: In minified mode shorter getter and setter names.

tests/compiler/dart2js_native/native_class_fields_3_test.dart

+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file

[ngeoffray, 2013/02/12 22:01:53]

2011 -> 2013

+// 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.
+
+// Verify that we can have fields with names that start with g and s even
+// though those names are reserved for getters and setters in minified mode.
+
+// Note: this works because end and send are both in the list of
+// reservedNativeProperties.  In general we don't check arbitrary
+// names for clashes because it's hard - subclasses can force superclasses
+// to rename getters, and that can force unrelated classes to change their
+// getters too if they have a property that has the same name.
+class A native "*A" {
+  int bar;
+  int g;
+  int s;
+  int end;
+  int gend;
+  int send;
+  int gettersCalled;
+  int settersCalled;
+}
+
+
+void setup() native r"""
+function getter() {
+  this.gettersCalled++;
+  return 42;
+}
+
+function setter(x) {
+  this.settersCalled++;
+  return 314;
+}
+
+var descriptor = {
+    get: getter,
+    set: setter,
+    configurable: false,
+    writeable: false
+};
+
+function A(){
+  var a = Object.create(
+      { constructor: { name: 'A'}},
+      { bar: descriptor,
+        g: descriptor,
+        s: descriptor,
+        end: descriptor,
+        gend: descriptor,
+        send: descriptor
+      });
+  a.gettersCalled = 0;
+  a.settersCalled = 0;
+  return a;
+}
+
+makeA = function() { return new A; };
+""";
+
+A makeA() native;
+
+class B {
+}
+
+int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
+
+main() {
+  setup();
+  var both = [makeA(), new B()];
+  var foo = both[inscrutable(0)];
+  Expect.equals(42, foo.bar);
+  Expect.equals(42, foo.g);
+  Expect.equals(42, foo.s);
+  Expect.equals(42, foo.end);
+  Expect.equals(42, foo.gend);
+  Expect.equals(42, foo.send);
+  Expect.equals(271, foo.bar = 271);
+  Expect.equals(271, foo.g = 271);
+  Expect.equals(271, foo.s = 271);
+  Expect.equals(271, foo.end = 271);
+  Expect.equals(271, foo.gend = 271);
+  Expect.equals(271, foo.send = 271);
+  Expect.equals(6, foo.gettersCalled);
+  Expect.equals(6, foo.settersCalled);
+}
+