Better diagnostic for static override when methods are thiscall by default

Methods are thiscall by default in the MS ABI, and also in MinGW targetting GCC 4.7 or later.

This changes the diagnostic from the technically correct but hard to understand:

  virtual function 'foo' has different calling convention attributes ('void ()') than the function it overrides (which has calling convention 'void () __attribute__((thiscall))')

to the more intuitive and also correct:

  'static' member function 'foo' overrides a virtual function

We already have a test for this. Let's just run it in both ABI modes.

Differential Revision: http://llvm-reviews.chandlerc.com/D2375

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197055 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Add checker callbacks for MemberExpr and UnaryExprOrTypeTraitExpr.

Found by Arthur Yoo!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197059 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-cxxabi] Fix linkage of dtor thunks for anonymous classes

We were mistakengly giving linkonce_odr linkage instead of internal
linkage to the deleting and complete destructor thunks for classes in
anonymous namespaces.

Fixes PR17273.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197060 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Refactor the NEON scalar floating-point reciprocal estimate, floating-
point reciprocal exponent, and floating-point reciprocal square root estimate
LLVM AArch64 intrinsics to use f32/f64 types, rather than their vector
equivalents.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197069 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Refactor the NEON scalar floating-point reciprocal step and
floating-point reciprocal square root step LLVM AArch64 intrinsics to
use f32/f64 types, rather than their vector equivalents.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197070 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Add NEON scalar floating-point compare LLVM AArch64 intrinsics that
use f32/f64 types, rather than their vector equivalents.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197071 91177308-0d34-0410-b5e6-96231b3b80d8
[objcmt] When whitelisting the headers we want to modify, allow changing the
the ObjC implementation declarations, just don't change implementations for
classes that are not in the whitelisted headers.

For example, if we change a method to return 'instancetype' we should also
update the method definition in the implementation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197075 91177308-0d34-0410-b5e6-96231b3b80d8
[objcmt] When emitting a remap file, use a json format with the edit entries, instead of applying the changes
to a temp file directly.

This allows to combine the edits when they can be different based on whether you saw
the implementation or not, e.g. with the designated initializer migration.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197076 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r197043, not a good comment

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197077 91177308-0d34-0410-b5e6-96231b3b80d8