Revert 528c4501f46fbe1e06028d673a777ef124d29829

Recently, `TestRubyLiteral#test_float` fails randomly.

```
  1) Error:
TestRubyLiteral#test_float:
ArgumentError: SyntaxError#path changed: "(eval at /home/chkbuild/chkbuild/tmp/build/20240527T050036Z/ruby/test/ruby/test_literal.rb:642)"->"(eval at /home/chkbuild/chkbuild/tmp/build/20240527T050036Z/ruby/test/ruby/test_literal.rb:642)"
```
https://rubyci.s3.amazonaws.com/s390x/ruby-master/log/20240527T050036Z.fail.html.gz

According to Launchable, the first failure was on Apr 30.
This is just when 528c4501f46fbe1e06028d673a777ef124d29829 was
committed. I don't know if the change is really the cause, but I want to
revert it once to see if the random failure disappears.

1 files changed, 1 insertions, 20 deletions

diff --git a/ruby_parser.c b/ruby_parser.c
index 98541fc597..931c07d988 100644
--- a/ruby_parser.c
+++ b/ruby_parser.c
@@ -168,12 +168,6 @@ enc_mbcput(unsigned int c, void *buf, parser_encoding *enc)
     return rb_enc_mbcput(c, buf, enc);
 }
 
-static int
-enc_mbclen(const char *p, const char *e, parser_encoding *enc)
-{
-    return rb_enc_mbclen(p, e, enc);
-}
-
 static parser_encoding *
 enc_from_index(int idx)
 {
@@ -419,7 +413,6 @@ static const rb_parser_config_t rb_global_parser_config = {
     .ascii8bit_encoding = ascii8bit_encoding,
     .enc_codelen = enc_codelen,
     .enc_mbcput = enc_mbcput,
-    .enc_mbclen = enc_mbclen,
     .enc_find_index = rb_enc_find_index,
     .enc_from_index = enc_from_index,
     .enc_isspace = enc_isspace,
@@ -664,19 +657,7 @@ static void parser_aset_script_lines_for(VALUE path, rb_parser_ary_t *lines);
 static rb_ast_t*
 parser_compile(rb_parser_t *p, rb_parser_lex_gets_func *gets, VALUE fname, rb_parser_input_data input, int line)
 {
-    rb_ast_t *ast;
-    const char *ptr = 0;
-    long len = 0;
-    rb_encoding *enc = 0;
-
-    if (!NIL_P(fname)) {
-        StringValueCStr(fname);
-        ptr = RSTRING_PTR(fname);
-        len = RSTRING_LEN(fname);
-        enc = rb_enc_get(fname);
-    }
-
-    ast = rb_parser_compile(p, gets, ptr, len, enc, input, line);
+    rb_ast_t *ast = rb_parser_compile(p, gets, fname, input, line);
     parser_aset_script_lines_for(fname, ast->body.script_lines);
     return ast;
 }