Fix SRETPromotion, it was generating functions without returns statements since
r53941 (but this was not noticed due to the lack of a basic test for
SRETPromotion). 

llvm-svn: 54467
diff --git a/llvm/lib/Transforms/IPO/StructRetPromotion.cpp b/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
index 314d1b9..ae6d55f 100644
--- a/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
@@ -121,7 +121,7 @@
       ++BI;
       if (isa<ReturnInst>(I)) {
         Value *NV = new LoadInst(TheAlloca, "mrv.ld", I);
-        ReturnInst *NR = ReturnInst::Create(NV);
+        ReturnInst *NR = ReturnInst::Create(NV, I);
         I->replaceAllUsesWith(NR);
         I->eraseFromParent();
       }