https://bugs.webkit.org/show_bug.cgi?id=124913

Source/JavaScriptCore: 

Reviewed by Oliver Hunt.
        
Also fix some small bugs in the bytecode liveness analysis that I found by doing
this validation thingy.

* bytecode/BytecodeLivenessAnalysis.cpp:
(JSC::isValidRegisterForLiveness):
(JSC::BytecodeLivenessAnalysis::runLivenessFixpoint):
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::validate):
(JSC::CodeBlock::beginValidationDidFail):
(JSC::CodeBlock::endValidationDidFail):
* bytecode/CodeBlock.h:
* runtime/Executable.cpp:
(JSC::ScriptExecutable::prepareForExecutionImpl):
* runtime/Options.h:

Source/WTF: 

Reviewed by Oliver Hunt.

* GNUmakefile.list.am:
* WTF.vcxproj/WTF.vcxproj:
* WTF.xcodeproj/project.pbxproj:
* wtf/CMakeLists.txt:
* wtf/FastBitVector.cpp: Added.
(WTF::FastBitVector::dump):
* wtf/FastBitVector.h:
(WTF::FastBitVector::resize):
(WTF::FastBitVector::bitCount):
(WTF::FastBitVector::arrayLength):

Tools: 

Reviewed by Oliver Hunt.

* Scripts/run-jsc-stress-tests:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@159825 268f45cc-cd09-0410-ab3c-d52691b4dbfc