Lint/SymbolConversion to provide an additional "consistent" option

[ritikesh]

Is your feature request related to a problem? Please describe.

For hashes where keys are mixed, wouldn't having a consistent key structure be more readable than be forced to use symbols for some keys and strings for the rest -

def method
  {
    'a': 1,
    'b-a': 2
  }
end

raises a Lint/SymbolConversion violation.

Describe the solution you'd like

# .rubocop.yml

Lint/SymbolConversion:
  EnforcedStyle: consistent

No violations for:

def method
  {
    'a': 1,
    'b-a': 2
  }
end

(OR)

def method
  {
    a: 1,
    b: 2
  }
end

violates for :

def method
  {
    a: 1,
    'b-a': 2
  }
end

[dvandersluis]

I think this is a good suggestion, I'm going to take a look.

[ritikesh]

That was quick! Thanks @dvandersluis and @bbatsov.