Merged r13848, r13849, r13944, r14013, r14099, r14101, r14145, r14158, r14196 into 3.17 branch.

Merged r13848, r13849, r13944, r14013, r14099, r14101, r14145, r14158, r14196 into 3.17 branch.

MIPS: Fix code size assertions for branch delay slots.

MIPS: Fixed faulty branch condition handling for doubles.

MIPS: Fix test262 regression.

MIPS: Critical fix for label binding in RegExp engine when trampoline is emitted.

MIPS: Fix register usage in softfloat code path.

MIPS: Fixed some soft-float bugs.

MIPS: Resolved the rest of soft-float bugs.

MIPS: Remove conflicting FPU check for code generation in soft-float mode.

Unbreak mipsel.debug.check

BUG=test262/data/test/suite/ch11/11.13/11.13.2,none

R=jkummerow@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=14270

[Jakob Kummerow, 2013-04-16 07:36:26]

lgtm

rubberstamp LGTM

[palfia, 2013-04-16 08:45:23]

Committed manually as r14270 (presubmit successful).