Support record dot syntax

[andys8]

There is a proposal for record dot syntax and the preprocessor.

Although this is probably still early, support for the new syntax would be awesome. One thing I notices is the following:

brittany will take a field access and split it apart because it's parsed as function composition.

x = a.b

x = a . b

For this example, it might be enough to not add whitespaces in this case.

(regarding complete support, there might be more issues)

[tfausak]

This will almost certainly require support from ghc-exactprint before Brittany can do anything about it.

[mrkkrp]

You could check how Ormolu does this. Ormolu only depends on ghc-lib-parser.

[andys8]

Record for syntax seems to land with GHC 9.2

[andys8]

ghc-exactprint with support for GHC 9.2 RC1

https://twitter.com/alan_zimm/status/1429911651340406795