Correctify instanceof and make it optimizable.

src/ia32/interface-descriptors-ia32.cc

Index: src/ia32/interface-descriptors-ia32.cc
diff --git a/src/ia32/interface-descriptors-ia32.cc b/src/ia32/interface-descriptors-ia32.cc
index 59e93af382641b8bd6ef7c28364fd6bf87962574..107e6290d2d2497b519544a97bbea98c0ebb4786 100644
--- a/src/ia32/interface-descriptors-ia32.cc
+++ b/src/ia32/interface-descriptors-ia32.cc
@@ -53,8 +53,8 @@ const Register StoreGlobalViaContextDescriptor::SlotRegister() { return ebx; }
 const Register StoreGlobalViaContextDescriptor::ValueRegister() { return eax; }
 
 
-const Register InstanceofDescriptor::left() { return eax; }
-const Register InstanceofDescriptor::right() { return edx; }
+const Register InstanceOfDescriptor::LeftRegister() { return edx; }
+const Register InstanceOfDescriptor::RightRegister() { return eax; }
 
 
 const Register ArgumentsAccessReadDescriptor::index() { return edx; }