java: prefer null to YYSYMBOL_YYEMPTY

That's one nice benefit from using enums.

* data/skeletons/lalr1.java (YYSYMBOL_YYEMPTY): No longer define it.
Use 'null' instead.
* examples/java/calc/Calc.y, tests/local.at: Adjust.

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/java/calc/Calc.y b/examples/java/calc/Calc.y
index 790f6f47..edccb94c 100644
--- a/examples/java/calc/Calc.y
+++ b/examples/java/calc/Calc.y
@@ -129,7 +129,7 @@ class CalcLexer implements Calc.Lexer {
     }
     {
       Calc.SymbolKind lookahead = ctx.getToken ();
-      if (lookahead != Calc.SymbolKind.YYSYMBOL_YYEMPTY)
+      if (lookahead != null)
         System.err.print (" before " + ctx.yysymbolName (lookahead));
     }
     System.err.println ("");