MIPS: Use the HandlerFrontendHeader in most call compilers.

Port r18125 (e541c68d)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/96043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Cleanup in the CallStubCompiler.

Port r18131 (b49d9992)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/96053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Fix register usage.

Port r18139 (2d54152a)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/96083002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Fetch strictmode in the interceptor setter from the IC.

Port r18140 (9d563402)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/96043003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00