Give thunks the same linkage as their original methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99729 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGVtable.cpp b/lib/CodeGen/CGVtable.cpp
index 6578825..4bdda98 100644
--- a/lib/CodeGen/CGVtable.cpp
+++ b/lib/CodeGen/CGVtable.cpp
@@ -3867,14 +3867,7 @@
   CXXThisDecl->Destroy(getContext());
   
   // Set the right linkage.
-  llvm::GlobalValue::LinkageTypes ThunkLinkage;
-  
-  if (CGM.getFunctionLinkage(MD) == llvm::Function::InternalLinkage)
-    ThunkLinkage = llvm::Function::InternalLinkage;
-  else
-    ThunkLinkage = llvm::Function::WeakAnyLinkage;
-  
-  Fn->setLinkage(ThunkLinkage);
+  Fn->setLinkage(CGM.getFunctionLinkage(MD));
   
   // Set the right visibility.
   CGM.setGlobalVisibility(Fn, MD);