[stubs] Rename index parameter to offset in CA::Load/Store operations.

... to avoid confusion.

BUG=

Review-Url: https://codereview.chromium.org/2546723002
Cr-Commit-Position: refs/heads/master@{#41424}

src/compiler/code-assembler.cc

@@ -283,12 +283,12 @@ Node* CodeAssembler::Load(MachineType rep, Node* base) {
   return raw_assembler()->Load(rep, base);
 }
 
-Node* CodeAssembler::Load(MachineType rep, Node* base, Node* index) {
-  return raw_assembler()->Load(rep, base, index);
+Node* CodeAssembler::Load(MachineType rep, Node* base, Node* offset) {
+  return raw_assembler()->Load(rep, base, offset);
 }
 
-Node* CodeAssembler::AtomicLoad(MachineType rep, Node* base, Node* index) {
-  return raw_assembler()->AtomicLoad(rep, base, index);
+Node* CodeAssembler::AtomicLoad(MachineType rep, Node* base, Node* offset) {
+  return raw_assembler()->AtomicLoad(rep, base, offset);
 }
 
 Node* CodeAssembler::LoadRoot(Heap::RootListIndex root_index) {
@@ -311,9 +311,9 @@ Node* CodeAssembler::Store(MachineRepresentation rep, Node* base, Node* value) {
   return raw_assembler()->Store(rep, base, value, kFullWriteBarrier);
 }
 
-Node* CodeAssembler::Store(MachineRepresentation rep, Node* base, Node* index,
+Node* CodeAssembler::Store(MachineRepresentation rep, Node* base, Node* offset,
                            Node* value) {
-  return raw_assembler()->Store(rep, base, index, value, kFullWriteBarrier);
+  return raw_assembler()->Store(rep, base, offset, value, kFullWriteBarrier);
 }
 
 Node* CodeAssembler::StoreNoWriteBarrier(MachineRepresentation rep, Node* base,
@@ -322,13 +322,13 @@ Node* CodeAssembler::StoreNoWriteBarrier(MachineRepresentation rep, Node* base,
 }
 
 Node* CodeAssembler::StoreNoWriteBarrier(MachineRepresentation rep, Node* base,
-                                         Node* index, Node* value) {
-  return raw_assembler()->Store(rep, base, index, value, kNoWriteBarrier);
+                                         Node* offset, Node* value) {
+  return raw_assembler()->Store(rep, base, offset, value, kNoWriteBarrier);
 }
 
 Node* CodeAssembler::AtomicStore(MachineRepresentation rep, Node* base,
-                                 Node* index, Node* value) {
-  return raw_assembler()->AtomicStore(rep, base, index, value);
+                                 Node* offset, Node* value) {
+  return raw_assembler()->AtomicStore(rep, base, offset, value);
 }
 
 Node* CodeAssembler::StoreRoot(Heap::RootListIndex root_index, Node* value) {

src/compiler/code-assembler.h

@@ -264,19 +264,19 @@ class V8_EXPORT_PRIVATE CodeAssembler {
 
   // Load raw memory location.
   Node* Load(MachineType rep, Node* base);
-  Node* Load(MachineType rep, Node* base, Node* index);
-  Node* AtomicLoad(MachineType rep, Node* base, Node* index);
+  Node* Load(MachineType rep, Node* base, Node* offset);
+  Node* AtomicLoad(MachineType rep, Node* base, Node* offset);
 
   // Load a value from the root array.
   Node* LoadRoot(Heap::RootListIndex root_index);
 
   // Store value to raw memory location.
   Node* Store(MachineRepresentation rep, Node* base, Node* value);
-  Node* Store(MachineRepresentation rep, Node* base, Node* index, Node* value);
+  Node* Store(MachineRepresentation rep, Node* base, Node* offset, Node* value);
   Node* StoreNoWriteBarrier(MachineRepresentation rep, Node* base, Node* value);
-  Node* StoreNoWriteBarrier(MachineRepresentation rep, Node* base, Node* index,
+  Node* StoreNoWriteBarrier(MachineRepresentation rep, Node* base, Node* offset,
                             Node* value);
-  Node* AtomicStore(MachineRepresentation rep, Node* base, Node* index,
+  Node* AtomicStore(MachineRepresentation rep, Node* base, Node* offset,
                     Node* value);
 
   // Store a value to the root array.