2008-06-24 Cameron Zwarich <cwzwarich@uwaterloo.ca>

2008-06-24  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej.

        Make the conversion of the pair (less, jtrue) to jless use register
        reference counting information for safety instead of requiring callers
        to decide whether it is safe.

        No changes on SunSpider codegen.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::emitJumpIfTrue):
        * VM/CodeGenerator.h:
        * kjs/nodes.cpp:
        (KJS::DoWhileNode::emitCode):
        (KJS::WhileNode::emitCode):
        (KJS::ForNode::emitCode):
        (KJS::CaseBlockNode::emitCodeForBlock):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@34784 268f45cc-cd09-0410-ab3c-d52691b4dbfc