Merge V8 at branches/3.2 r8606: Initial merge by Git.

Change-Id: I9906d4a1145c7fab2ad78e7a9c375205c56d1287
diff --git a/src/arm/assembler-arm.h b/src/arm/assembler-arm.h
index 9050c2c..3f2daab 100644
--- a/src/arm/assembler-arm.h
+++ b/src/arm/assembler-arm.h
@@ -302,6 +302,10 @@
 const DwVfpRegister d14 = { 14 };
 const DwVfpRegister d15 = { 15 };
 
+// Aliases for double registers.
+const DwVfpRegister kFirstCalleeSavedDoubleReg = d8;
+const DwVfpRegister kLastCalleeSavedDoubleReg = d15;
+
 
 // Coprocessor register
 struct CRegister {