Now that we support WoA, this test fails on ARM build bots as __va_start has a
different signature on different architectures.

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The main difference between __va_start and __builtin_va_start is that
the address of the va_list has already been taken, and the va_list is
always a char*.

__va_end and __va_arg are not needed.

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Fixes <rdar://problem/15584219> and <rdar://problem/12241361>.

This change looks large, but all it does is reuse and consolidate
the delayed diagnostic logic for deprecation warnings with unavailability
warnings.  By doing so, it showed various inconsistencies between the
diagnostics, which were close, but not consistent.  It also revealed
some missing "note:"'s in the deprecated diagnostics that were showing
up in the unavailable diagnostics, etc.

This change also changes the wording of the core deprecation diagnostics.
Instead of saying "function has been explicitly marked deprecated"
we now saw "'X' has been been explicitly marked deprecated".  It
turns out providing a bit more context is useful, and often we
got the actual term wrong or it was not very precise
 (e.g., "function" instead of "destructor").  By just saying the name
of the thing that is deprecated/deleted/unavailable we define
this issue away.  This diagnostic can likely be further wordsmithed
to be shorter.

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__declspec(uuid) is only supported for C++ code according to MSDN (as well as behaviorally in MSVC). This adds a generic diagnostic that we use for uuid, and can use for some other attributes as well, and adds a testcase.

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Removed a parameter from handleAttrWithMessage to make it more consistent with other attribute handlers, as well as other attribute error messages.  Added missing test cases for the unavailable attribute, and updated the deprecated test case.

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This became allowed by accident in r131201, but triggers an assert.
That patch added an exception to allow conversion from pointers to
narrow integral types for MSVC compatibility. However, a pointer can
already be converted to bool in a civilized manner; allowing conversion
via reinterpret_cast is a bad idea.

Fixes PR16222.

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Adding in parsing and the start of semantic support for __sptr and __uptr pointer type qualifiers.  This patch also fixes the correlated __ptr32 and __ptr64 pointer qualifiers so that they are truly type attributes instead of declaration attributes.

For more information about __sptr and __uptr, see MSDN: http://msdn.microsoft.com/en-us/library/aa983399.aspx

Patch reviewed by Richard Smith.


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Unify the codepaths for emitting deprecation warnings.  The test changes are just to account for us emitting notes more consistently.



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Reapplying the changes from r158717 as they were rolled back to avoid merge conflicts from a separate problematic patch.

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The original r158700 caused crashes in the gcc test suite,
g++.abi/vtable3a.C among others. It also caused failures in the libc++
test suite.

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Improves parsing and semantic analysis for MS __declspec attributes.  This includes support for the align (which fixes PR12631).

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location. // rdar://10893232


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Shift Microsoft enum extensions from -fms-extensions to -fms-compatibility, so -fms-extensions doesn't affect enum semantics in incompatible ways. <rdar://problem/10657186>.



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Fixes PR11847. Patch from Jason Haslam!



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We need a longer long when testing this pathe Microsoft fixed-underlying-type extension for enumeration types

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  enum X : long { Value = 0x100000000 };

when in Microsoft-extension mode (-fms-extensions). This (now C++0x)
feature has been supported since Microsoft Visual Studio .NET 2003.


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Documentation: http://msdn.microsoft.com/en-us/library/z2cx9y4f.aspx

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1. enum underlying type is int by default.
2. Error "enumerator value is not representable in the underlying type"is a ExtWarning

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automatically when syncing due to the auto-props selecting svn:eol-style of
'native'.


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   - in union
   - as the only element of a struct/class.

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