Remove uses of PtrAndFlags from JIT data stuctures.

Reviewed by Oliver Hunt.

These break the OS X Leaks tool.  Free up a bit in CallLinkInfo, and invalid
permutation of pointer states in MethodCallLinkInfo to represent the removed bits.

* bytecode/CodeBlock.h:
(JSC::CallLinkInfo::seenOnce):
(JSC::CallLinkInfo::setSeen):
(JSC::MethodCallLinkInfo::MethodCallLinkInfo):
(JSC::MethodCallLinkInfo::seenOnce):
(JSC::MethodCallLinkInfo::setSeen):
* jit/JIT.cpp:
(JSC::JIT::unlinkCall):
* jit/JITPropertyAccess.cpp:
(JSC::JIT::patchMethodCallProto):
* runtime/UString.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@54747 268f45cc-cd09-0410-ab3c-d52691b4dbfc