https://bugs.webkit.org/show_bug.cgi?id=116350

Reviewed by Oliver Hunt.

This refactors compilation so that:

- JITStubs knows exactly what the result of compilation was. For example, if
  compilation was deferred, it will now know this.

- The set of things that has to happen to install compiled code is now factored
  out into JSC::installOptimizedCode().

- A bunch of the code in Executable.cpp is now made more common to reduce code
  duplication. For example, the heap heuristics stuff is now in one place.

* JavaScriptCore.xcodeproj/project.pbxproj:
* bytecode/CodeBlock.cpp:
(JSC::ProgramCodeBlock::compileOptimized):
(JSC::ProgramCodeBlock::replaceWithDeferredOptimizedCode):
(JSC):
(JSC::EvalCodeBlock::compileOptimized):
(JSC::EvalCodeBlock::replaceWithDeferredOptimizedCode):
(JSC::FunctionCodeBlock::compileOptimized):
(JSC::FunctionCodeBlock::replaceWithDeferredOptimizedCode):
(JSC::ProgramCodeBlock::jitCompileImpl):
(JSC::EvalCodeBlock::jitCompileImpl):
(JSC::FunctionCodeBlock::jitCompileImpl):
* bytecode/CodeBlock.h:
(CodeBlock):
(JSC::CodeBlock::jitCompile):
(ProgramCodeBlock):
(EvalCodeBlock):
(FunctionCodeBlock):
* dfg/DFGDesiredIdentifiers.cpp:
(JSC::DFG::DesiredIdentifiers::numberOfIdentifiers):
(DFG):
(JSC::DFG::DesiredIdentifiers::at):
* dfg/DFGDesiredIdentifiers.h:
(JSC):
(DesiredIdentifiers):
* dfg/DFGDriver.cpp:
(JSC::DFG::compile):
(JSC::DFG::tryCompile):
(JSC::DFG::tryCompileFunction):
(JSC::DFG::tryFinalizePlan):
(DFG):
* dfg/DFGDriver.h:
(DFG):
(JSC::DFG::tryCompile):
(JSC::DFG::tryCompileFunction):
(JSC::DFG::tryFinalizePlan):
* dfg/DFGGraph.cpp:
(JSC::DFG::Graph::Graph):
* dfg/DFGJITFinalizer.cpp:
(JSC::DFG::JITFinalizer::finalizeCommon):
* dfg/DFGPlan.cpp:
(JSC::DFG::Plan::Plan):
(JSC::DFG::Plan::compileInThread):
(JSC::DFG::Plan::reallyAdd):
* dfg/DFGPlan.h:
(JSC):
(Plan):
(DFG):
* ftl/FTLJITFinalizer.cpp:
(JSC::FTL::JITFinalizer::finalizeFunction):
* jit/JITDriver.h:
(JSC::jitCompileIfAppropriateImpl):
(JSC::jitCompileFunctionIfAppropriateImpl):
(JSC):
(JSC::jitCompileIfAppropriate):
(JSC::jitCompileFunctionIfAppropriate):
* jit/JITStubs.cpp:
(JSC::DEFINE_STUB_FUNCTION):
* llint/LLIntSlowPaths.cpp:
(JSC::LLInt::jitCompileAndSetHeuristics):
* runtime/CompilationResult.cpp: Added.
(WTF):
(WTF::printInternal):
* runtime/CompilationResult.h: Added.
(JSC):
(WTF):
* runtime/Executable.cpp:
(JSC::EvalExecutable::compileOptimized):
(JSC::EvalExecutable::jitCompile):
(JSC::EvalExecutable::compileInternal):
(JSC::EvalExecutable::replaceWithDeferredOptimizedCode):
(JSC):
(JSC::ProgramExecutable::compileOptimized):
(JSC::ProgramExecutable::jitCompile):
(JSC::ProgramExecutable::compileInternal):
(JSC::ProgramExecutable::replaceWithDeferredOptimizedCode):
(JSC::FunctionExecutable::compileOptimizedForCall):
(JSC::FunctionExecutable::compileOptimizedForConstruct):
(JSC::FunctionExecutable::jitCompileForCall):
(JSC::FunctionExecutable::jitCompileForConstruct):
(JSC::FunctionExecutable::compileForCallInternal):
(JSC::FunctionExecutable::replaceWithDeferredOptimizedCodeForCall):
(JSC::FunctionExecutable::compileForConstructInternal):
(JSC::FunctionExecutable::replaceWithDeferredOptimizedCodeForConstruct):
* runtime/Executable.h:
(ScriptExecutable):
(EvalExecutable):
(ProgramExecutable):
(FunctionExecutable):
(JSC::FunctionExecutable::compileOptimizedFor):
(JSC::FunctionExecutable::replaceWithDeferredOptimizedCodeFor):
(JSC::FunctionExecutable::jitCompileFor):
* runtime/ExecutionHarness.h:
(JSC::prepareForExecutionImpl):
(JSC::prepareFunctionForExecutionImpl):
(JSC):
(JSC::installOptimizedCode):
(JSC::prepareForExecution):
(JSC::prepareFunctionForExecution):
(JSC::replaceWithDeferredOptimizedCode):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153165 268f45cc-cd09-0410-ab3c-d52691b4dbfc