[ARM] Register ARMExpandPseudo pass.

This allows -run-pass etc. to refer to it.

(Split off from D35156.)

llvm-svn: 312587
diff --git a/llvm/lib/Target/ARM/ARM.h b/llvm/lib/Target/ARM/ARM.h
index 4676226..3aac689 100644
--- a/llvm/lib/Target/ARM/ARM.h
+++ b/llvm/lib/Target/ARM/ARM.h
@@ -60,6 +60,7 @@
 void initializeARMLoadStoreOptPass(PassRegistry &);
 void initializeARMPreAllocLoadStoreOptPass(PassRegistry &);
 void initializeARMConstantIslandsPass(PassRegistry &);
+void initializeARMExpandPseudoPass(PassRegistry &);
 
 } // end namespace llvm