merge revision(s) 44354: [Backport #9270]

	* array.c: Have to_h raise on elements that are not key-value pairs
	  [#9239]

	* enum.c: ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@44361 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44333: [Backport #9282]

	* lib/rubygems/commands/install_command.rb:  Restore gem install
	  --ignore-dependencies for remote gems

	* test/rubygems/test_gem_commands_install_command.rb:  Test for the
	  above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@44362 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44334: [Backport #9283]

	* test/rubygems/test_gem_ext_builder.rb:  Fix warning due to ambiguous
	  expression.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@44365 b2dd03c8-39d4-4d8f-98ff-823fe69b080e