X87: Correctify instanceof and make it optimizable.

src/x87/interface-descriptors-x87.cc

Index: src/x87/interface-descriptors-x87.cc
diff --git a/src/x87/interface-descriptors-x87.cc b/src/x87/interface-descriptors-x87.cc
index a96aeef40ad762ae64ad36303bfa76ba46fce291..d68802a19879c1f98ede637bd0a476b80cd0ec50 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.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; }