Move register conventions out of the IC classes.

src/ic/ic-conventions.h

+// 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.
+
+#ifndef V8_IC_CONVENTIONS_H_
+#define V8_IC_CONVENTIONS_H_
+
+namespace v8 {
+namespace internal {
+
+class LoadConvention {
+ public:
+  enum ParameterIndices { kReceiverIndex, kNameIndex, kParameterCount };
+  static const Register ReceiverRegister();
+  static const Register NameRegister();
+};
+
+
+class VectorLoadConvention : public LoadConvention {
+ public:
+  enum ParameterIndices {
+    kReceiverIndex,
+    kNameIndex,
+    kSlotIndex,
+    kParameterCount
+  };
+  static const Register SlotRegister();
+};
+
+
+class FullVectorLoadConvention : public VectorLoadConvention {
+ public:
+  enum ParameterIndices {
+    kReceiverIndex,
+    kNameIndex,
+    kSlotIndex,
+    kVectorIndex,
+    kParameterCount
+  };
+  static const Register VectorRegister();
+};
+
+
+class StoreConvention {
+ public:
+  enum ParameterIndices {
+    kReceiverIndex,
+    kNameIndex,
+    kValueIndex,
+    kParameterCount
+  };
+  static const Register ReceiverRegister();
+  static const Register NameRegister();
+  static const Register ValueRegister();
+
+  // The map register isn't part of the normal call specification, but
+  // ElementsTransitionAndStoreStub, used in polymorphic keyed store
+  // stub implementations requires it to be initialized.
+  static const Register MapRegister();
+};
+}
+}  // namespace v8::internal
+
+#endif  // V8_IC_CONVENTIONS_H_