Kernel#inspect: improve consistency and do not call #to_s.

A class can now benefit from the nice default #inspect even if it
defines #to_s. Also, there is no more unexpected change in #inspect
result. Internal structures have been adapted so they don't rely
on the removed behavior (#inspect calling overridden #to_s).

* object.c (rb_obj_inspect): Kernel#inspect: do not call #to_s.
* test/ruby/test_object.rb (test_inspect): add tests for Kernel#inspect.
* bignum.c, io.c, numeric.c, object.c, proc.c, vm.c (Init_*):
  alias #inspect to #to_s where it was expected.
  [ruby-core:43238][Feature #6130]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36699 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index 30d0f8a7bd..80dd512ae1 100644
--- a/vm.c
+++ b/vm.c
@@ -2229,6 +2229,7 @@ Init_top_self(void)
 
     vm->top_self = rb_obj_alloc(rb_cObject);
     rb_define_singleton_method(rb_vm_top_self(), "to_s", main_to_s, 0);
+    rb_define_alias(rb_singleton_class(rb_vm_top_self()), "inspect", "to_s");
 
     /* initialize mark object array */
     vm->mark_object_ary = rb_ary_tmp_new(1);