add support for a few simple escape characters in tblgen strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66949 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/TableGen/String.td b/test/TableGen/String.td
new file mode 100644
index 0000000..d2ae451
--- /dev/null
+++ b/test/TableGen/String.td
@@ -0,0 +1,5 @@
+// RUN: tblgen %s 
+class x {
+  string y = "missing terminating '\"' character";
+}
+