Sync the list of default warnings with reality; fixes #8060.
On second thoughts, don't document -fwarn-alternative-layout-rule-transitional

I think the alternative layout rule flags are deliberately not
documented at the moment.
Document -fwarn-pointless-pragmas; fixes #8049
Add `:show linker` command to `:help` output
Add `:show imports` to completion table
use prompt2 in `:set +m` mode
Add final remaining bits to fix #7978.
Temporarily disable common block elimination; fixes #8083 for now
Fix a bug in stack layout with safe foreign calls (#8083)

We weren't properly tracking the number of stack arguments in the
continuation of a foreign call.  It happened to work when the
continuation was not a join point, but when it was a join point we
were using the wrong amount of stack fixup.
Whitespace only in deSugar/Desugar.lhs
Remove an unnecessary-looking import
Some release note additions.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Use OrdLists when parsing export lists

No functional changes
Remove redundant parentheses
Whitespace only in basicTypes/Avail.hs
Whitespace only in basicTypes/BasicTypes.lhs
De-orphan a load of Binary instances
Beautify a few Binary instances
Whitespace only in basicTypes/RdrName.lhs
Whitespace only in deSugar/Match.lhs