[Interpreter] Add support for loading from / storing to outer context variables.

test/unittests/compiler/arm/instruction-selector-arm-unittest.cc

 // Copyright 2014 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.
 
 #include <limits>
 
 #include "test/unittests/compiler/instruction-selector-unittest.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 1302 matching lines @@
     EXPECT_EQ(index, s.ToInt32(s[0]->InputAt(1)));
     ASSERT_EQ(1U, s[0]->OutputCount());
     EXPECT_TRUE((s.*memacc.val_predicate)(s[0]->Output()));
   }
 }
 
 
 TEST_P(InstructionSelectorMemoryAccessTest, StoreWithParameters) {
   const MemoryAccess memacc = GetParam();
   StreamBuilder m(this, kMachInt32, kMachPtr, kMachInt32, memacc.type);
-  m.Store(memacc.type, m.Parameter(0), m.Parameter(1), m.Parameter(2));
+  StoreRepresentation store_rep(memacc.type, kNoWriteBarrier);
+  m.Store(store_rep, m.Parameter(0), m.Parameter(1), m.Parameter(2));
   m.Return(m.Int32Constant(0));
   Stream s = m.Build();
   ASSERT_EQ(1U, s.size());
   EXPECT_EQ(memacc.str_opcode, s[0]->arch_opcode());
   EXPECT_EQ(kMode_Offset_RR, s[0]->addressing_mode());
   EXPECT_EQ(3U, s[0]->InputCount());
   EXPECT_EQ(0U, s[0]->OutputCount());
 }
 
 
 TEST_P(InstructionSelectorMemoryAccessTest, StoreWithImmediateIndex) {
   const MemoryAccess memacc = GetParam();
   TRACED_FOREACH(int32_t, index, memacc.immediates) {
     StreamBuilder m(this, kMachInt32, kMachPtr, memacc.type);
-    m.Store(memacc.type, m.Parameter(0), m.Int32Constant(index),
-            m.Parameter(1));
+    StoreRepresentation store_rep(memacc.type, kNoWriteBarrier);
+    m.Store(store_rep, m.Parameter(0), m.Int32Constant(index), m.Parameter(1));
     m.Return(m.Int32Constant(0));
     Stream s = m.Build();
     ASSERT_EQ(1U, s.size());
     EXPECT_EQ(memacc.str_opcode, s[0]->arch_opcode());
     EXPECT_EQ(kMode_Offset_RI, s[0]->addressing_mode());
     ASSERT_EQ(3U, s[0]->InputCount());
     ASSERT_EQ(InstructionOperand::IMMEDIATE, s[0]->InputAt(1)->kind());
     EXPECT_EQ(index, s.ToInt32(s[0]->InputAt(1)));
     EXPECT_EQ(0U, s[0]->OutputCount());
   }
@@ skipping 1429 matching lines @@
   EXPECT_EQ(kArmClz, s[0]->arch_opcode());
   ASSERT_EQ(1U, s[0]->InputCount());
   EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
   ASSERT_EQ(1U, s[0]->OutputCount());
   EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8