Pattern: Missing use of to_h
Issue: -
Looks for uses of map.to_h or collect.to_h that could be written with just to_h in Ruby >= 2.6.
# bad
something.map { |v| [v, v * 2] }.to_h
# good
something.to_h { |v| [v, v * 2] }
# bad
{foo: bar}.collect { |k, v| [k.to_s, v.do_something] }.to_h
# good
{foo: bar}.to_h { |k, v| [k.to_s, v.do_something] }