Add GetAddrOfConstantCString method
 - Returns addr of constant for argument + '\0'.
 - I couldn't think of a better name.
 - Move appropriate users of GetAddrOfConstantString to this.

Rename getStringForStringLiteral to GetStringForStringLiteral.

Add GetAddrOfConstantStringFromLiteral
 - This combines GetAddrOfConstantString and
   GetStringForStringLiteral. This method can be, but is not yet, more
   efficient.

Change GetAddrOfConstantString to not add terminating '\0'
 - <rdar://problem/6140956>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54768 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjC.cpp b/lib/CodeGen/CGObjC.cpp
index 7270884..2e400f4 100644
--- a/lib/CodeGen/CGObjC.cpp
+++ b/lib/CodeGen/CGObjC.cpp
@@ -52,7 +52,7 @@
     if (!strcmp(classname, "super")) {
       classname = E->getMethodDecl()->getClassInterface()->getName();
     }
-    llvm::Value *ClassName = CGM.GetAddrOfConstantString(classname);
+    llvm::Value *ClassName = CGM.GetAddrOfConstantCString(classname);
     ClassName = Builder.CreateStructGEP(ClassName, 0);
     Receiver = Runtime.LookupClass(Builder, ClassName);
   } else if (const PredefinedExpr *PDE =