merge revision(s) 50402: [Backport #11107]
* parse.y (lambda): push and reset cmdarg_stack in lambda body. [ruby-core:69017] [Bug #11107]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 50402: [Backport #11107]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e