MIPS: Reland r20974: Unify and simplify the FastCloneShallowArrayStub.
Port r21230 (56ef3ac)
Original commit message:
- Don't bake in length/capacity into full codegen calls of stubs,
allowing boilerplates to increase their capacity without regenerating
code.
- Unify all variants of the clone stub into a single,
length-independent version.
- Various tweaks to make sure that the clone stub doesn't spill and
therefore need an eager stack frame.
- Handle all lengths of array literals in the fast case.
BUG=
R=plind44@gmail.com
Review URL: https://codereview.chromium.org/
273103002
Patch from Balazs Kilvady <kilvadyb@homejinni.com>.
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21239
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00