merge revision(s) f367b4ff,31a757a4,837cbea6:

	assert_equal accepts an expected value as the first argument

	---
	 test/psych/test_coder.rb | 30 +++++++++++++++---------------
	 1 file changed, 15 insertions(+), 15 deletions(-)

	Make the test pass with the old libyaml

	I have no idea what result is right, but it fails with libyaml 0.1.7
	(bundled with Ubuntu 18.04) anyway.
	---
	 test/psych/test_coder.rb | 6 +++---
	 1 file changed, 3 insertions(+), 3 deletions(-)

	test/psych/test_coder.rb: Suppress non-parenthesis warnings

	http://rubyci.s3.amazonaws.com/debian9/ruby-master/log/20210518T093002Z.log.html.gz
	```
	/home/chkbuild/chkbuild/tmp/build/20210518T093002Z/ruby/test/psych/test_coder.rb:277: warning: ambiguity between regexp and two divisions: wrap regexp in parentheses or add a space after `/' operator
	```
	---
	 test/psych/test_coder.rb | 6 +++---
	 1 file changed, 3 insertions(+), 3 deletions(-)