Cleanup method operator edge cases
Handle unary operators implemented as methods correctly
Add emitter for case statement
Add emitter for for-nodes
Add emitters for while and until
Cleanup spec
Fix YARD issue
Collapse duplication between while and until emitter
Reduce complexity in for emitter dispatch
Break up big send emitter file
Collapse duplication in op assign
Add missing class descriptions
Remove duplicate method call
Add missing class descriptions
Collapse duplication in pre and postexe emitters
Remove some duplicate method calls
Simplify pre and postexe even more
Adjust flay and flog score
Adjust reek config
Break up long method in send emitter