Add HasProperty code stub that tries simple lookups or jumps to runtime otherwise.

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 384ea45508f4bc2032739c0faf05a16a73e93936..3e1481b1812a548a25ad81fccb2a263aefdaaa64 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -420,6 +420,9 @@ void FullCodeGenerator::EmitReturnSequence() {
   }
 }
 
+void FullCodeGenerator::RestoreContext() {
+  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+}
 
 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
@@ -1339,7 +1342,7 @@ void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
     __ mov(edx, Immediate(Smi::FromInt(flags)));
     FastCloneShallowObjectStub stub(isolate(), expr->properties_count());
     __ CallStub(&stub);
-    __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+    RestoreContext();
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
@@ -1774,8 +1777,7 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
   __ j(equal, &post_runtime);
   __ push(eax);  // generator object
   __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 1);
-  __ mov(context_register(),
-         Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   __ bind(&post_runtime);
   PopOperand(result_register());
   EmitReturnSequence();
@@ -2416,10 +2418,7 @@ void FullCodeGenerator::EmitCall(Call* expr, ConvertReceiverMode mode) {
   OperandStackDepthDecrement(arg_count + 1);
 
   RecordJSReturnSite(expr);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
-
+  RestoreContext();
   context()->DropAndPlug(1, eax);
 }
 
@@ -2521,8 +2520,7 @@ void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) {
           RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
   RecordJSReturnSite(expr);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->DropAndPlug(1, eax);
 }
 
@@ -2562,8 +2560,7 @@ void FullCodeGenerator::VisitCallNew(CallNew* expr) {
   __ call(stub.GetCode(), RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
   PrepareForBailoutForId(expr->ReturnId(), TOS_REG);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->Plug(eax);
 }
 
@@ -2604,9 +2601,7 @@ void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
   OperandStackDepthDecrement(arg_count + 1);
 
   RecordJSReturnSite(expr);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->Plug(eax);
 }
 
@@ -3007,8 +3002,7 @@ void FullCodeGenerator::EmitCall(CallRuntime* expr) {
   __ mov(eax, Immediate(argc));
   __ Call(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(argc + 1);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   // Discard the function left on TOS.
   context()->DropAndPlug(1, eax);
 }
@@ -3128,9 +3122,7 @@ void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) {
   __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kNullOrUndefined),
           RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
 }
 
 
@@ -3604,7 +3596,7 @@ void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
     case Token::IN:
       VisitForStackValue(expr->right());
       SetExpressionPosition(expr);
-      CallRuntimeWithOperands(Runtime::kHasProperty);
+      EmitHasProperty();
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ cmp(eax, isolate()->factory()->true_value());
       Split(equal, if_true, if_false, fall_through);