Always pass `ghc-options` (#8717)
* Always pass `ghc-options`
The [documentation for `ghc-shared-options`][1] states that they are
combined with `ghc-options`:
> Additional options for GHC when the package is built as shared
> library. The options specified via this field are combined with the
> ones specified via `ghc-options`, and are passed to GHC during both
> the compile and link phases.
However, _only_ `ghc-shared-options` and not `ghc-options` are passed in
many cases.
This is an issue because it requires setting `ghc-shared-options` even
if the shared (dynamic) parts of the build don't actually need different
options; this has the unpleasant side-effect of causing modules to be
compiled twice, effectively doubling compile time! See here, where any
non-empty `ghc-shared-options` causes Cabal to not set `-dynamic-too`:
https://github.com/haskell/cabal/blob/
acbc0f3a5cc9faf0913ff3e270196693816cec41/Cabal/src/Distribution/Simple/GHC.hs#L1466-L1469
This issue was discovered while integrating the `mold` linker with a
Haskell project.
[1]: https://cabal.readthedocs.io/en/latest/cabal-package.html#pkg-field-ghc-shared-options
* Add documentation
* Also enhance profArgs and profDynArgs
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Co-authored-by: Hécate Moonlight <hecate+github@glitchbra.in>
Co-authored-by: Hécate <Kleidukos@users.noreply.github.com>