Diagnostics improvements for 3.9

[Richard Trieu via cfe-commits]

Typos and unused test variables fixed in r277900

On Fri, Aug 5, 2016 at 6:46 PM, Richard Smith <richard at metafoo.co.uk> wrote:

> On Fri, Aug 5, 2016 at 6:33 PM, Richard Smith <richard at metafoo.co.uk>
> wrote:
>
>> These all look OK for the branch. Hans, the second one fixes a crasher,
>> so I'd like to take at least that one. The others fix warning false
>> positives (which are not regressions) and look fairly safe.
>>
>
> Correction: looks like the final one is in fact a fix for a diagnostic
> regression.
>
>
>> On Fri, Aug 5, 2016 at 4:39 PM, Richard Trieu <rtrieu at google.com> wrote:
>>
>>> Hans, Richard,
>>>
>>> These are some last minute diagnostic improvements for 3.9.
>>>
>>> http://llvm.org/viewvc/llvm-project?rev=277796&view=rev
>>> r277796
>>> Don't warn when negative values, like -1, are used to initialize
>>> unsigned bit fields.
>>>
>>> http://llvm.org/viewvc/llvm-project?rev=277797&view=rev
>>> r277797
>>> Fix crash with type alias in Template Type Diffing
>>>
>>
>> (You have a typo Internalal in this.)
>>
>>
>>> http://llvm.org/viewvc/llvm-project?rev=277866&view=rev
>>> r277866
>>> Fix false positive in -Wunsequenced and templates
>>>
>>> http://llvm.org/viewvc/llvm-project?rev=277889&view=rev
>>> r277889
>>> Fixes for two false positives in -Wreturn-stack-address dealing with
>>> parameter variables and reference to pointer types.
>>>
>>
>> (Test has some x3 variables that are unused.)
>>
>
>
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