[ic] Extract load IC proto array handlers handling to a separate stub.

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 e6cd46d7f053031bee00357baae74fb5c048a208..8ce78720de4d5857c423bde8e7e9b0ac24deda80 100644
--- a/src/ia32/interface-descriptors-ia32.cc
+++ b/src/ia32/interface-descriptors-ia32.cc
@@ -31,6 +31,7 @@ const Register LoadDescriptor::SlotRegister() { return eax; }
 
 const Register LoadWithVectorDescriptor::VectorRegister() { return ebx; }
 
+const Register LoadICProtoArrayDescriptor::HandlerRegister() { return edi; }
 
 const Register StoreDescriptor::ReceiverRegister() { return edx; }
 const Register StoreDescriptor::NameRegister() { return ecx; }