Support for accessors properties in mergeSuperClassesProperty

[yuchi]

let counter = 0;

class Test1 {
  static get FOO() { return counter++; }
}
class Test2 extends Test1 {
  static get FOO() { return counter++; }
}

core.mergeSuperClassesProperty(Test2, 'FOO');

assert.deepEqual(Test2.FOO_MERGED, [ 0, 1 ]);
assert.deepEqual(Test2.FOO_MERGED, [ 2, 3 ]);
assert.deepEqual(Test2.FOO_MERGED, [ 4, 5 ]);

</uselessly-pedantic>

[mairatma]

This issue was moved to metal/metal#12

[mairatma]

This was moved back.