X87: [stubs] Introduce ToNameStub to implement %_ToName.

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 b64c75f06463eaf289f252a937b4254872ab1c74..2c34815677d2db69e4d8753543eab051885c7857 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.cc
@@ -119,6 +119,10 @@ const Register ToStringDescriptor::ReceiverRegister() { return eax; }
 
 
 // static
+const Register ToNameDescriptor::ReceiverRegister() { return eax; }
+
+
+// static
 const Register ToObjectDescriptor::ReceiverRegister() { return eax; }