Preview of a first step towards unification of hydrogen calls

src/arm/code-stubs-arm.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 462 matching lines @@
   int MinorKey() {
     return LookupModeBits::encode(mode_);
   }
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
+struct PlatformCallInterfaceDescriptor {
+  explicit PlatformCallInterfaceDescriptor(
+      TargetAddressStorageMode storage_mode)
+      : storage_mode_(storage_mode) { }
+
+  TargetAddressStorageMode storage_mode() { return storage_mode_; }
+
+ private:
+  TargetAddressStorageMode storage_mode_;
+};
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CODE_STUBS_ARM_H_