Fix Name Access

Get the Record name as a string explicitly to avoid asserts.

llvm-svn: 142517
diff --git a/llvm/lib/TableGen/TGParser.cpp b/llvm/lib/TableGen/TGParser.cpp
index b06b8db..45625f9 100644
--- a/llvm/lib/TableGen/TGParser.cpp
+++ b/llvm/lib/TableGen/TGParser.cpp
@@ -2021,8 +2021,9 @@
   if (CurMultiClass) {
     for (unsigned i = 0, e = CurMultiClass->DefPrototypes.size();
          i != e; ++i)
-      if (CurMultiClass->DefPrototypes[i]->getName() == CurRec->getName())
-        return Error(DefmPrefixLoc, "defm '" + CurRec->getName() +
+      if (CurMultiClass->DefPrototypes[i]->getNameInit()
+          == CurRec->getNameInit())
+        return Error(DefmPrefixLoc, "defm '" + CurRec->getNameInitAsString() +
                      "' already defined in this multiclass!");
     CurMultiClass->DefPrototypes.push_back(CurRec);