Class fields, part 3 (backends)

test/mjsunit/harmony/class-fields-to-name.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-class-fields
+
+{
+  let hits = 0;
+  let coercible = { toString(){ ++hits; return 'a'; } };
+
+  class C {
+    [coercible] = 0;
+  }
+
+  assertEquals(1, hits);
+
+  new C;
+  new C;
+
+  assertEquals(1, hits);
+
+  assertEquals(0, (new C).a);
+}
+
+{
+  let hits = 0;
+  let coercible = { toString(){ ++hits; return 'a'; } };
+
+  class C {
+    static [coercible] = 0;
+  }
+
+  assertEquals(1, hits);
+
+  new C;
+  new C;
+
+  assertEquals(1, hits);
+
+  assertEquals(0, C.a);
+}