* trim API surface area

* move Range and Pos types to FSharp.Compiler

* undo uppercae range/pos

* move Range and Pos types to FSHarp.Compiler.SourceCodeServices since they are part of the FCS API

* fix baselines

* release notes

* FIX BUILD

* fix test

* fix test

* fix test

* fix test

* fix build

* fix build

* fix build

* PrettyNaming moved to SourceCodeServices

* ISourceText moved to SourceCodeServices

* update docs

* update docs

* fix build

* fix build

* move Range, Pos to FSharp.Compiler.Text

* fix test

* fix build
Co-authored-by: NDon Syme <donsyme@fastmail.com>