Add debugging printf commented out

src/parser3.h

@@ -827,6 +827,7 @@ inline PRESERVE_NONE WeaselJsonStatus Parser3::keepGoing(Parser3 *self,
       return WeaselJson_REJECT;
     }
   }
+  // printf("%s\n", symbolTables.symbolNames[self->top()]);
   MUSTTAIL return symbolTables.continuations[self->top()](self, buf, bufEnd);
 }