[llvm-c] Make LLVMGetTargetFromName actually work

LLVMGetTargetFromName used to compare two char* strings directly.

llvm-svn: 194771
diff --git a/llvm/lib/Target/TargetMachineC.cpp b/llvm/lib/Target/TargetMachineC.cpp
index e111380..3d5f827 100644
--- a/llvm/lib/Target/TargetMachineC.cpp
+++ b/llvm/lib/Target/TargetMachineC.cpp
@@ -73,9 +73,10 @@
 }
 
 LLVMTargetRef LLVMGetTargetFromName(const char *Name) {
+  StringRef NameRef = Name;
   for (TargetRegistry::iterator IT = TargetRegistry::begin(),
                                 IE = TargetRegistry::end(); IT != IE; ++IT) {
-    if (IT->getName() == Name)
+    if (IT->getName() == NameRef)
       return wrap(&*IT);
   }