Don't delete HsTimeConfig.h.in during distclean.

sdist preps the tree via distclean before anything else, which caused
HsTimeConfig.h.in under 'time' to be deleted - even though it should be
included in the resulting tarball for ./configure.

The correct target is 'maintainer-clean'.

I'm guessing the nightlies didn't complain because they run ./boot,
forcing regeneration. NixOS's Hydra does not, though.

Thanks to Peter Simons and Andres Löh for pointing this out.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Comments only
Comments only

I restored part of documentation that describes what is a let-no-escape
and which was deleted 10 months ago together with the old codegen. Then
I removed lots of Literate Haskell clutter (like empty \begin{code} -
\end{code} blocks) and finally decided to remove all the Literate Haskell
markup because there wasn't much of it left, but it made comments so
difficult to read.
Fix Trac #8138.

The code in CoreLint did not take into account the possibility of
~R# arguments to functions. These can arise in argToPat in SpecConstr.
Now, CoreLint does not fail when it sees a ~R# parameter.

This commit also updates the core-spec document accordingly.
Add support for external repositories to sync-all

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Eliminate trailing whitespace from Lexer.x

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Eliminate trailing whitespace from Parser.y.pp

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Remove dead code, fix a typo.

Authored-by: Anders Papitto <anderspapitto@gmail.com>
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Dead code elimination.

Authored-by: Paul Cavallaro <ptc@fb.com>
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Improve error when using forall with UnicodeSyntax

Fixes Trac #7901.

'∀' is neither upper nor lowercase, unlike the 'f' in 'forall', so when
explicit forall is not enabled, it creates a parse error before reaching
the '.', which is where we give a nice message for ascii 'forall'.
Therefore, we make '∀' into a token as long as UnicodeSyntax is enabled,
which is safe because its caselessness means it can never be mistaken
for a symbol, and check extensions in the parser when the 'forall' rule
is used.

Authored-by: Paul Cavallaro <ptc@fb.com>
Authored-by: Anders Papitto <anderspapitto@gmail.com>
Signed-off-by: Austin Seipp <aseipp@pobox.com>