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

src/full-codegen/arm64/full-codegen-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 442 matching lines @@
     // arguments, consider how to improve it without creating a security
     // hole.
     __ ldr_pcrel(ip0, (3 * kInstructionSize) >> kLoadLiteralScaleLog2);
     __ Add(current_sp, current_sp, ip0);
     __ Ret();
     int32_t arg_count = info_->scope()->num_parameters() + 1;
     __ dc64(kXRegSize * arg_count);
   }
 }
 
+void FullCodeGenerator::RestoreContext() {
+  __ Ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+}
 
 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
   codegen()->GetVar(result_register(), var);
   codegen()->PushOperand(result_register());
 }
 
 
 void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {
   // Root values have no side effects.
@@ skipping 3174 matching lines @@
   Label* if_false = NULL;
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false,
                          &if_true, &if_false, &fall_through);
 
   Token::Value op = expr->op();
   VisitForStackValue(expr->left());
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
-      CallRuntimeWithOperands(Runtime::kHasProperty);
+      EmitHasProperty();
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ CompareRoot(x0, Heap::kTrueValueRootIndex);
       Split(eq, if_true, if_false, fall_through);
       break;
 
     case Token::INSTANCEOF: {
       VisitForAccumulatorValue(expr->right());
       PopOperand(x1);
       InstanceOfStub stub(isolate());
       __ CallStub(&stub);
@@ skipping 387 matching lines @@
   }
 
   return INTERRUPT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64