merge revision(s) fa05697e4832fbd67a4f91b9bb362471902faab3: [Backport #18166]

	Use `%printer` directive for Bison 3.8

	---
	 parse.y | 74 ++++++++++++++++++++++++++---------------------------------------
	 1 file changed, 29 insertions(+), 45 deletions(-)

1 files changed, 29 insertions, 2 deletions

diff --git a/parse.y b/parse.y
index b111202e8d..3bc3748dd5 100644
--- a/parse.y
+++ b/parse.y
@@ -89,7 +89,6 @@ struct lex_context {
 #define YYCALLOC(nelem, size)	rb_parser_calloc(p, (nelem), (size))
 #define YYFREE(ptr)		rb_parser_free(p, (ptr))
 #define YYFPRINTF		rb_parser_printf
-#define YYPRINT(out, tok, val)	parser_token_value_print(p, (tok), &(val))
 #define YY_LOCATION_PRINT(File, loc) \
      rb_parser_printf(p, "%d.%d-%d.%d", \
 		      (loc).beg_pos.lineno, (loc).beg_pos.column,\
@@ -654,7 +653,6 @@ RUBY_SYMBOL_EXPORT_END
 
 static void error_duplicate_pattern_variable(struct parser_params *p, ID id, const YYLTYPE *loc);
 static void error_duplicate_pattern_key(struct parser_params *p, ID id, const YYLTYPE *loc);
-static void parser_token_value_print(struct parser_params *p, enum yytokentype type, const YYSTYPE *valp);
 #ifndef RIPPER
 static ID formal_argument(struct parser_params*, ID);
 #else
@@ -1084,6 +1082,35 @@ static int looking_at_eol_p(struct parser_params *p);
 %expect 0
 %define api.pure
 %define parse.error verbose
+%printer {
+#ifndef RIPPER
+    rb_parser_printf(p, "%"PRIsVALUE, rb_id2str($$));
+#else
+    rb_parser_printf(p, "%"PRIsVALUE, RNODE($$)->nd_rval);
+#endif
+} tIDENTIFIER tFID tGVAR tIVAR tCONSTANT tCVAR tLABEL tOP_ASGN
+%printer {
+#ifndef RIPPER
+    rb_parser_printf(p, "%+"PRIsVALUE, $$->nd_lit);
+#else
+    rb_parser_printf(p, "%+"PRIsVALUE, get_value($$));
+#endif
+} tINTEGER tFLOAT tRATIONAL tIMAGINARY tSTRING_CONTENT tCHAR
+%printer {
+#ifndef RIPPER
+    rb_parser_printf(p, "$%ld", $$->nd_nth);
+#else
+    rb_parser_printf(p, "%"PRIsVALUE, $$);
+#endif
+} tNTH_REF
+%printer {
+#ifndef RIPPER
+    rb_parser_printf(p, "$%c", (int)$$->nd_nth);
+#else
+    rb_parser_printf(p, "%"PRIsVALUE, $$);
+#endif
+} tBACK_REF
+
 %lex-param {struct parser_params *p}
 %parse-param {struct parser_params *p}
 %initial-action