[GR-36903] Add support for rb_str_new_static.

PullRequest: truffleruby/3171

Author: aardvark179

CHANGELOG.md

@@ -27,6 +27,7 @@ Compatibility:
 * Follow symlinks when processing `*/` directory glob patterns. (#2589, @aardvark179).
 * Set `@gem_prelude_index` variable on the default load paths (#2586 , @bjfish)
 * Do not call `IO#flush` dynamically from `IO#close` (#2594, @gogainda).
+* Implement `rb_str_new_static` for C extensions that use it (@aardvark179).
 
 Performance:
 

lib/cext/ABI_version.txt

@@ -1 +1 @@
-11
+12

src/main/c/cext/string.c

@@ -60,6 +60,11 @@ VALUE rb_str_new(const char *string, long length) {
   }
 }
 
+VALUE rb_str_new_static(const char *string, long length) {
+  /* The string will be copied immediately anyway, so no real difference to rb_str_new. */
+  return rb_str_new(string, length);
+}
+
 VALUE rb_tainted_str_new(const char *ptr, long len) {
     rb_warning("rb_tainted_str_new is deprecated and will be removed in Ruby 3.2.");
     return rb_str_new(ptr, len);