add a horrible hack to fix the build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66957 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TGLexer.cpp b/utils/TableGen/TGLexer.cpp
index 8b81091..03bf0ce 100644
--- a/utils/TableGen/TGLexer.cpp
+++ b/utils/TableGen/TGLexer.cpp
@@ -173,6 +173,15 @@
       // These turn into their literal character.
       CurStrVal += *CurPtr++;
       break;
+    case 't':
+      CurStrVal += "\\t";
+      ++CurPtr;
+      break;
+    case 'n':
+      CurStrVal += "\\n";
+      ++CurPtr;
+      break;
+        
     case '\n':
     case '\r':
       return ReturnError(CurPtr, "escaped newlines not supported in tblgen");