https://bugs.webkit.org/show_bug.cgi?id=119105

Source/JavaScriptCore: 

Reviewed by Oliver Hunt and Mark Hahnenberg.
        
- GetById patching in the DFG needs to be more disciplined about how it derives the
  slow path.
        
- Fix some dumping code thread safety issues.

* bytecode/CallLinkStatus.cpp:
(JSC::CallLinkStatus::dump):
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::dumpBytecode):
* dfg/DFGRepatch.cpp:
(JSC::DFG::getPolymorphicStructureList):
(JSC::DFG::tryBuildGetByIDList):

LayoutTests: 

Reviewed by Oliver Hunt and Mark Hahnenberg.

* fast/js/dfg-get-by-id-unset-then-proto-less-warmup.html: Added.
* fast/js/dfg-get-by-id-unset-then-proto-more-warmup.html: Added.
* fast/js/dfg-get-by-id-unset-then-proto.html: Added.
* fast/js/jsc-test-list
* fast/js/script-tests/dfg-get-by-id-unset-then-proto-less-warmup.js: Added.
(foo):
(Blah):
* fast/js/script-tests/dfg-get-by-id-unset-then-proto-more-warmup.js: Added.
(foo):
(Blah):
* fast/js/script-tests/dfg-get-by-id-unset-then-proto.js: Added.
(foo):
(Blah):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153381 268f45cc-cd09-0410-ab3c-d52691b4dbfc