<https://webkit.org/b/119915> REGRESSION(r154144): ASSERTION FAILED: m_history->provisionalItem() == m_requestedHistoryItem.get()

Add failing test expectations.

* platform/mac-wk2/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154206 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[JSC] x86: improve code generation for xxxTest32
https://bugs.webkit.org/show_bug.cgi?id=119876

Reviewed by Geoffrey Garen.

Try to use testb whenever possible when testing for an immediate value.

When the input is an address and an offset, we can tweak the mask
and offset to be able to generate testb for any byte of the mask.

When the input is a register, we can use testb if we are only interested
in testing the low bits.

* assembler/MacroAssemblerX86Common.h:
(JSC::MacroAssemblerX86Common::branchTest32):
(JSC::MacroAssemblerX86Common::test32):
(JSC::MacroAssemblerX86Common::generateTest32):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154207 268f45cc-cd09-0410-ab3c-d52691b4dbfc