Add Name Init Accessors

Add a utility to get the name init and get the string representation
of the name.  This will be used for paste functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142495 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/TableGen/Record.h

@@ -1404,6 +1404,13 @@ class Record {
   unsigned getID() const { return ID; }
 
   const std::string &getName() const;
+  Init *getNameInit() const {
+    return Name;
+  }
+  const std::string getNameInitAsString() const {
+    return getNameInit()->getAsUnquotedString();
+  }
+
   void setName(Init *Name);               // Also updates RecordKeeper.
   void setName(const std::string &Name);  // Also updates RecordKeeper.