extern cstring sRef_unparseState (sRef p_s) /*@*/ ;
extern ynm sRef_isWriteable (sRef p_s) /*@*/ ;
-extern ynm sRef_isReadable (sRef p_s) /*@*/ ;
+extern ynm sRef_isValidLvalue (sRef p_s) /*@*/ ;
extern bool sRef_isStrictReadable (sRef p_s) /*@*/ ;
extern bool sRef_hasNoStorage (sRef p_s) /*@*/ ;
extern void sRef_showExpInfo (sRef p_s) /*@modifies g_msgstream*/ ;