Don't abort on GetRVal when the LVal is a StringLiteralVal.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50245 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ValueState.cpp b/lib/Analysis/ValueState.cpp
index 94c6228..501d801 100644
--- a/lib/Analysis/ValueState.cpp
+++ b/lib/Analysis/ValueState.cpp
@@ -212,6 +212,10 @@
       return UnknownVal();
     }
       
+    case lval::StringLiteralValKind:
+      // FIXME: Implement better support for fetching characters from strings.
+      return UnknownVal();
+      
     default:
       assert (false && "Invalid LVal.");
       break;