ARM: Reenable Div and Mod in the ARM lithium codegenerator. The

crashes uncovered by this were caused by constant pool in safe-point
tables. This should be safe to enable now.

Review URL: http://codereview.chromium.org/6243005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/lithium-codegen-arm.cc

@@ -1004,7 +1004,6 @@ void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) {
 
 
 void LCodeGen::DoModI(LModI* instr) {
-  Abort("ModI not implemented");
   class DeferredModI: public LDeferredCode {
    public:
     DeferredModI(LCodeGen* codegen, LModI* instr)
@@ -1060,7 +1059,6 @@ void LCodeGen::DoModI(LModI* instr) {
 
 
 void LCodeGen::DoDivI(LDivI* instr) {
-  Abort("DivI not implemented");
   class DeferredDivI: public LDeferredCode {
    public:
     DeferredDivI(LCodeGen* codegen, LDivI* instr)

src/frames.cc

@@ -554,6 +554,7 @@ void OptimizedFrame::Iterate(ObjectVisitor* v) const {
     parameters_base += safepoint_entry.argument_count();
   }
 
+  // Skip saved double registers.
   if (safepoint_entry.has_doubles()) {
     parameters_base += DoubleRegister::kNumAllocatableRegisters *
         kDoubleSize / kPointerSize;