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<h3>
Marge Bot pushed to branch wip/14548
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/78a5c4ce6bae233b655097ada3901028104f0f27">78a5c4ce</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-05-07T21:03:04Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Check for duplicate variables in associated default equations
A follow-up to !696's, which attempted to clean up the error messages
for ill formed associated type family default equations. The previous
attempt, !696, forgot to account for the possibility of duplicate
kind variable arguments, as in the following example:
```hs
class C (a :: j) where
type T (a :: j) (b :: k)
type T (a :: k) (b :: k) = k
```
This patch addresses this shortcoming by adding an additional check
for this. Fixes #13971 (hopefully for good this time).
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f58ea556538c048b05607be869feb677b1083175">f58ea556</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-07T21:09:13Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for old typechecking issue #505
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/786e665b8dac5430c02089b39f7cb7572a5254d8">786e665b</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-05-08T05:55:45Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix #16603 by documenting some important changes in changelogs
This addresses some glaring omissions from
`libraries/base/changelog.md` and
`docs/users_guide/8.8.1-notes.rst`, fixing #16603 in the process.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/0eeb4cfad732d0b9b278c2274cb6db9633f9d3b5">0eeb4cfa</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-05-08T06:01:54Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix #16632 by using the correct SrcSpan in checkTyClHdr
`checkTyClHdr`'s case for `HsTyVar` was grabbing the wrong `SrcSpan`,
which lead to error messages pointing to the wrong location. Easily
fixed.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ed5f858b8484a207e28baf9cbec4c60de1c86187">ed5f858b</a></strong>
<div>
<span>by Shayne Fletcher</span>
<i>at 2019-05-08T19:29:01Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Implement ImportQualifiedPost
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d9bdff607e79a605197a13203ca9421153e8dd37">d9bdff60</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-08T19:35:13Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">stg_floatToWord32zh: zero-extend the Word32 (#16617)
The primop stgFloatToWord32 was sign-extending the 32-bit word, resulting
in weird negative Word32s. Zero-extend them instead.
Closes #16617.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/9a3acac968d76370e12839db4b71bb0a43e35b2c">9a3acac9</a></strong>
<div>
<span>by Ömer Sinan Ağacan</span>
<i>at 2019-05-08T19:41:17Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Print PAP object address in stg_PAP_info entry code
Continuation to ce23451c
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4c86187ccd49309c1d6b32d05b164822a803d3e2">4c86187c</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2019-05-08T19:47:33Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Regression test for #16627.
test: typecheck/should_fail/T16627
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/93f34bbd3319544d8eb3a5e2593bccb9b12e3459">93f34bbd</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-05-08T19:53:40Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Purge TargetPlatform_NAME and cTargetPlatformString
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/9d9af0eea599b82f5567885a36e9059f8484aa39">9d9af0ee</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-08T19:59:46Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for old issue #507
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/396e01b472bba36530e7eb065b82d311f0da7880">396e01b4</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2019-05-08T20:05:52Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add a regression test for #14548
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
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<a href="#6846a4633a1df62b15f368e7e22420844e3c6352">
compiler/ghc.mk
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<a href="#1cdb1403f521a3eca20f72051b8923885fd0302b">
compiler/hsSyn/HsImpExp.hs
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<a href="#11e9bfd841c4163c1919b5e07efc84740e02010f">
compiler/main/DynFlags.hs
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<a href="#0831bc65cca168adf0a366e38a1c7731f94c3d8b">
compiler/main/HeaderInfo.hs
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compiler/main/HscStats.hs
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compiler/main/SysTools.hs
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compiler/parser/Lexer.x
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compiler/parser/Parser.y
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compiler/parser/RdrHsSyn.hs
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compiler/rename/RnNames.hs
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compiler/typecheck/TcRnDriver.hs
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<a href="#bdfa0cc139f61d1236abc1598c5d684b43c357f9">
compiler/typecheck/TcTyClsDecls.hs
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<a href="#58f771eb1cb2ec7f67a51a429acc590f40617af9">
compiler/utils/Panic.hs
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<a href="#8d11c404e91070407324f71df4a47224c0887148">
docs/users_guide/8.8.1-notes.rst
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<a href="#40d93f06cdb95d1c98a6b3832d0153e59839d832">
docs/users_guide/glasgow_exts.rst
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ghc/GHCi/UI.hs
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<a href="#2d11d70063aa1378e9323caad80c7d9116ef4520">
hadrian/src/Rules/Generate.hs
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<a href="#6011cad13b19136953f8ee72df01a66623c5c1b0">
includes/Cmm.h
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<a href="#75e004ba0ee41712b519d7dbb11188801ddbb722">
includes/ghc.mk
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<a href="#5e3609f85113fc4df5cb7080c8a05b7f6de8c030">
libraries/base/cbits/CastFloatWord.cmm
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<a href="#392e9dfd3417e267d708c5ab16536f2994d43745">
libraries/base/changelog.md
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libraries/ghc-boot-th/GHC/LanguageExtensions/Type.hs
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rts/Apply.cmm
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testsuite/tests/codeGen/should_run/T16617.hs
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testsuite/tests/codeGen/should_run/all.T
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<a href="#9f7a74d3512ab004425ec39cbbcb9737e2ecaa82">
testsuite/tests/driver/T4437.hs
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testsuite/tests/ghci/should_run/all.T
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