Classes: Add support for arguments in default constructor

Classes: Add support for arguments in default constructor

This is currently done by generating a default constructor that looks
like this:

  constructor() {
    %DefaultConstructorSuperCall();
  }

The a runtime function implements the logic which is pretty similar to
Runtime_Apply except that it uses the [[Prototype]] of the current
function.

BUG=v8:3672
LOG=Y
R=dslomov@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=25268

[arv (Not doing code reviews), 2014-11-11 01:29:10]

arv@chromium.org changed reviewers:
+ adamk@chromium.org

[arv (Not doing code reviews), 2014-11-11 01:44:09]

Dmitry, I know you said you wanted this to get inlined. Maybe it is still
something I should pursue but after looking into it, it seems like writing
full-codegen for all of this would require significant work. We do not even have
inlined version of Apply (which is simpler than this one).

https://codereview.chromium.org/692333011/diff/1/src/runtime/runtime-classes.cc
File src/runtime/runtime-classes.cc (right):

https://codereview.chromium.org/692333011/diff/1/src/runtime/runtime-classes....
src/runtime/runtime-classes.cc:477: // If there are too many arguments, allocate
argv via malloc.
This part is taken from Runtime_Apply. I don't see how this can be refactored to
reduce code duplication?

[Dmitry Lomov (no reviews), 2014-11-11 10:12:50]

lgtm if an extra test added.

Ok to keep it in runtime for now. Make it run, make it right,  make it fast -
this CL advances us to the second stage.
Let's discuss the inlining offline

https://codereview.chromium.org/692333011/diff/20001/test/mjsunit/harmony/cla...
File test/mjsunit/harmony/classes.js (right):

https://codereview.chromium.org/692333011/diff/20001/test/mjsunit/harmony/cla...
test/mjsunit/harmony/classes.js:630: constructor() {
Add a test with constructor that takes arguments normally (via parameters)

[arv (Not doing code reviews), 2014-11-11 15:54:45]

Committed patchset #2 (id:20001) manually as 25268 (presubmit successful).