merge revision(s) cbe4f75ef802f13d05f94e42274b65a062bd3666: [Backport
	 #16834]

		Fix rb_profile_frame_classpath to handle module singletons

		Right now `SomeClass.method` is properly named, but `SomeModule.method`
		is displayed as `#<Module:0x000055eb5d95adc8>.method` which makes
		profiling annoying.
	---
	 test/-ext-/debug/test_profile_frames.rb | 40 ++++++++++++++++++++++++++++-----
	 version.h                               |  2 +-
	 vm_backtrace.c                          |  2 +-
	 3 files changed, 36 insertions(+), 8 deletions(-)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* vm_backtrace.c (rb_debug_inspector_open): escape all env using
  `rb_vm_stack_to_heap()` before making bindings.
  [Bug #15105]

  There is a complicated story of this issue:
  Without this patch, IFUNC frame does not escaped. A IFUNC frame
  points to CFUNC ep as previous ep. However, CFUNC ep can be escaped
  because of making bindings of Ruby level frames.
  IFUNC's ep can points to invalidated ep and `rb_iter_break()` will
  fail. This is why `any?` fails.

* test/-ext-/debug/test_debug.rb: add a test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64800 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

This reverts commit r63265.

ko1 said I should not have committed this! I'm sorry!

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63267 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

rb_profile_frames was always behaving as if the value given for the
start parameter was 0.

The reason for this was that it would check if (start > 0) { then
continue without updating the control frame pointer or anything other
than decrementing start.

[ruby-core:86147] [Bug #14607]

Co-authored-by: Dylan Thacker-Smith <Dylan.Smith@shopify.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63265 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* vm_backtrace.c (rb_profile_frames): ignore ifunc frames as it
  did before.  [ruby-core:72409] [Bug #11851]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53225 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

When you change this to true, you may need to add more tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* internal.h, iseq.c (rb_iseq_klass): remove it because
  rb_iseq_t::klass is removed.
* vm_insnhelper.c (vm_super_outside): do not see cfp->iseq, but
  check callable method entry on a frame.
  This fix simplify the logic to search super class.
* test/ruby/test_method.rb: support super() from Proc.
  Now, [Bug #4881] and [Bug #3136] was solved.
* proc.c (rb_mod_define_method): catch up this change.
* vm.c (vm_define_method): ditto.
* vm_backtrace.c (rb_profile_frames): now, each `frame' objects
  are rb_callable_method_entry_t data or iseq VALUEs.
  This fix introduce minor compatibility issue that
  rb_profile_frame_label() always returns
  rb_profile_frame_base_label().
* test/-ext-/debug/test_profile_frames.rb: catch up this change.



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  methods defined directly on an object.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43287 b2dd03c8-39d4-4d8f-98ff-823fe69b080e