Change Kernel#warn to call Warning.warn

This allows Warning.warn to filter/process warning messages
generated by Kernel#warn.  Currently, Warning.warn can only handle
messages generated by the rb_warn/rb_warning C functions.

The Kernel#warn API is different than the Warning.warn API, this
tries to get similar behavior, but there are probably corner cases
where the behavior is different.

This makes str_end_with_asciichar in io.c no longer static so it
can be called from error.c.

[Feature #12944]
Author:    Jeremy Evans <code@jeremyevans.net>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57370 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 3 deletions

diff --git a/io.c b/io.c
index 1074689560..4bcddf4cf9 100644
--- a/io.c
+++ b/io.c
@@ -7124,8 +7124,8 @@ rb_f_putc(VALUE recv, VALUE ch)
 }
 
 
-static int
-str_end_with_asciichar(VALUE str, int c)
+int
+rb_str_end_with_asciichar(VALUE str, int c)
 {
     long len = RSTRING_LEN(str);
     const char *ptr = RSTRING_PTR(str);
@@ -7202,7 +7202,7 @@ rb_io_puts(int argc, const VALUE *argv, VALUE out)
       string:
 	rb_io_write(out, line);
 	if (RSTRING_LEN(line) == 0 ||
-            !str_end_with_asciichar(line, '\n')) {
+            !rb_str_end_with_asciichar(line, '\n')) {
 	    rb_io_write(out, rb_default_rs);
 	}
     }