* Fix running the IDE on damlc
There were two issues:
1. Missing include paths.
2. Files where the module name does not match the file name.
I’ve fixed both and added a test that we can load the damlc Main.hs.
* Delete the entirely unused reflow function
* Don't have Data.Text.Prettyprint.Doc.Syntax reexport stuff
* Move most of the pretty printing inside hie-core
* Get rid of the prettyprinter-syntax dependency from hie-core
* Get rid of prettyprinter-syntax, by collapsing the one definition into DA.Pretty
