Macro map_with_index

[Blacksmoke16]

• Implements the map_with_index method on TupleLiteral and ArrayLiteral.
• Reorganizes the macro method specs a bit
  • Alphabetizes each type
  • Use the constant type vs string
  • Updates some type's structure to use the standard format
    • Mainly just TupleLiteral and ArrayLiteral.
  • Marks some missing tests as pending
    • Can make another PR later to fill these in.

Reorganization will be handled in another PR.

Use case is something like (pseudo code):

initializer = some_class_def.methods.find(&.name.==("initialize"))
service_ann.args.map_with_index { |arg, idx| arg.as(initializer.args[idx].restriction) } 

[straight-shoota]

Could you please separate reorganization and feature addition into separate commits (or maybe even PRs)? Thanks!

[Blacksmoke16]

@straight-shoota I'll make another PR with the reorganization plus implementing the missing specs. This should be good to review now.

[RX14]

This should be another PR?

[RX14]

What is the StringLiteral#identify macro method useful for?

[Blacksmoke16]

@RX14 No idea, it already exists but just wasn't documented.

[Blacksmoke16]

Bump, this should be good to go.

[Blacksmoke16]

@RX14 @bcardiff @straight-shoota Any chance of this making it in the next release?

[Blacksmoke16]

Anything left to do here?

[straight-shoota]

This needs to be washed into two commits, one focused on adding map_with_index and the other containing the unrelated changes.

[Blacksmoke16]

@straight-shoota Done. Just made one commit with the changes. Can make another PR later for adding that macro method to the doc list.

[straight-shoota]

Yes, please. It should be a separate commit, either in this PR or in another one.