Fix broken 32-bit build to green the bots.
https://bugs.webkit.org/show_bug.cgi?id=114968.

Unreviewed.

Basically, I moved a JIT::emit_op_loop_hint() and JIT::emitSlow_op_loop_hint()
into common code where they belong, instead of the 64-bit specific section.

Also fixed some SH4 assertions failures which were also caused by
https://bugs.webkit.org/show_bug.cgi?id=114963. Thanks to Julien Brianceau
for pointing this out.

* assembler/MacroAssemblerSH4.h:
(JSC::MacroAssemblerSH4::branchAdd32):
* jit/JITOpcodes.cpp:
(JSC):
(JSC::JIT::emit_op_loop_hint):
(JSC::JIT::emitSlow_op_loop_hint):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148899 268f45cc-cd09-0410-ab3c-d52691b4dbfc