New ghc version

(previous update was 2ecdf137)

Default to non-interactive init.

Fix v2-install ProgramDb confusion

Improve docs for html-location

Commit 273dacfd ("Extract installLibraries and InstallExes from
installAction") makes 'getInstalledPackages' get passed the
pre-configCompilerEx ProgramDb which will cause pattern match failures when
the code tries to lookup ghc-pkg in the progdb.

Someone mentioned this section was confusing in #haskell. I added an
example of command line usage so there is no confusion.

[ci skip]

Add changelog for #5977 amd #6134 fixes [ci skip]

Add cabal-version: 3.2

Depend on tagged to get Proxy

Pass `ld-options` through to GHC

parser: Clearly state that invalid fields are ignored

Ben Gamari authored 5 years ago and Oleg Grenrus committed 5 years ago

Previously we would issue a warning of the following form when
we encountered a field that isn't supported by the cabal-version
declared in the cabal file:

    Warning: ghc-heap.cabal:30:3: The field "cmm-sources" is available
    only since the Cabal specification version 3.0.

The message, however, doesn't tell the user the consequence of this
warning. Consequently a user could easily be confused when the build
subsequently fail.

Avoid this possibility by clearly stating that the field value will be
ignored.

Update to SPDX License List 3.6 2019-07-10

Parse list fields in cabal config file

Add FGSectionDescrs so cabal.project sections can be parsed using Fie…

runParseResult reutrns NonEmpty PError