Check and propogate errors from llvm.

Change-Id: Id99a724f746d1f64eabcdf67c12646cc32ff8f9d
diff --git a/libs/rs/rsScriptC.h b/libs/rs/rsScriptC.h
index 483481e8..612e38a 100644
--- a/libs/rs/rsScriptC.h
+++ b/libs/rs/rsScriptC.h
@@ -81,7 +81,7 @@
     void init(Context *rsc);
 
     void clear(Context *rsc);
-    void runCompiler(Context *rsc, ScriptC *s, const char *resName, const char *cacheDir);
+    bool runCompiler(Context *rsc, ScriptC *s, const char *resName, const char *cacheDir);
 
     struct SymbolTable_t {
         const char * mName;