merge revision(s) e1b592b5,d10451f3: [Backport #15758]

	test_module.rb: fix a typo

	* test/ruby/test_module.rb (TestModule#test_nested_get): fix a
	  typo.  nested module's name is a qualified path.

	git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67471 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	object.c: fix searching nested const paths

	* object.c (rb_mod_const_get, rb_mod_const_defined): nested const
	  paths should not search from toplevel constants.
	  [ruby-core:92202] [Bug #15758]

	git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e