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This commit converts the lexers and all the parser machinery to use the
new parser types and diagnostics infrastructure. Furthermore, it cleans
up the way the parser code was emitting hints.
As a result of this systematic approach, the test output of the
`InfixAppPatErr` and `T984` tests have been changed. Previously they
would emit a `SuggestMissingDo` hint, but this was not at all helpful in
resolving the error, and it was even confusing by just looking at the
original program that triggered the errors.
Update haddock submodule
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-------------------------
Metric Decrease:
T12425
Metric Increase:
T17516
-------------------------
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Traditionally, `fixIO f` throws `BlockedIndefinitelyOnMVar` if
`f` is strict. This is not particularly friendly, since the
`MVar` in question is just part of the way `fixIO` happens to be
implemented. Instead, throw a new `FixIOException` with a better
explanation of the problem.
Reviewers: austin, hvr, bgamari
Subscribers: rwbarton, thomie
GHC Trac Issues: #14356
Differential Revision: https://phabricator.haskell.org/D4113
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Changes in a few different places to catch several different
types of error related to RecursiveDo
Signed-off-by: Rupert Horlick <ruperthorlick@gmail.com>
Test Plan: Three test cases, with further tests in comments
Reviewers: austin, bgamari
Reviewed By: bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D3271
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No point in pretending the testsuite can be run with older versions of GHC.
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Test Plan: Compiled ghc fine. Opened ghci and fed it invalid code. It gave the improved error messages in response.
Reviewers: austin
Subscribers: thomie, simonpj, spacekitteh, rwbarton, simonmar, carter
Differential Revision: https://phabricator.haskell.org/D201
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This matches GCC's choice of Unicode quotation marks (i.e. U+2018 and U+2019)
and therefore looks more familiar on the console. This addresses #2507.
Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
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Authored-by: David Luposchainsky <dluposchainsky@gmail.com>
Signed-off-by: Austin Seipp <aseipp@pobox.com>
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Notably
* Showing relevant bindings
* Not suggesting add instance (Num T); see Trac #7222
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