More debug print improvements

Author: osa1

src/grammar.rs

@@ -364,6 +364,7 @@ impl<'a, 'b, A> fmt::Display for ProductionDisplay<'a, 'b, A> {
                     write!(f, "{}", nt.non_terminal)?;
                 }
                 SymbolKind::Terminal(t) => {
+                    let t = self.grammar.get_terminal(*t);
                     write!(f, "{:?}", t)?;
                 }
             }

src/lr_common.rs

@@ -74,12 +74,13 @@ impl<A: fmt::Debug + Eq> LRTableBuilder<A> {
                 }
                 LRAction::Reduce(_nt_, _p_, _) => {
                     // TODO: Allowing overriding reduce actions for shift for now
+                    // let production = grammar.get_production(nt_, p_);
                     // panic!(
-                    //     "({}, {:?}): Overriding Reduce({}, {}) action with Shift({})",
+                    //     "({}, {:?}): Overriding Reduce({} -> {}) action with Shift({})",
                     //     state.0,
                     //     grammar.get_terminal(token),
-                    //     nt_.0,
-                    //     p_.0,
+                    //     grammar.get_non_terminal(nt_).non_terminal,
+                    //     ProductionDisplay::new(production, grammar),
                     //     next_state.0,
                     // );
                 }