Remove the Darwin_Generic_GCC toolchain.

This is currently unused by any test. The code path would still be hit
by clang on ppc, but

* PPC has not been supported on current versions of OS X
* A port of current clang to older OS X on ppc should be using
toolchains::DarwinClang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195585 91177308-0d34-0410-b5e6-96231b3b80d8
remove gcc::Precompile

Clang still has support for running gcc for performing various stages
of a build. Right now it looks like this is used for

* Supporting Fortran in the clang driver
* Running an assembler or linker in systems we don't yet know how to
run them directly.

It looks like the gcc::Precompile is a vestige from the days when we
supported using clang for C and running gcc for c++. This patch removes it
(yes, we have no tests for it).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195586 91177308-0d34-0410-b5e6-96231b3b80d8
Add heading and remove leftover personal email addresses

clang's attribute support is mature by now so replace Sean's warning and email
address with a standard LLVM copyright heading.

Also remove a personal email address and credit docstring from CGObjCGNU that
shouldn't have been there.

This is in line with the LLVM developer policy introduced in r45410.
Contributors can add themselves to CREDITS.txt while active module owners are
listed in CODE_OWNERS.TXT.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195587 91177308-0d34-0410-b5e6-96231b3b80d8
SemaDeclAttr.cpp: Try to fix a warning [-Wunnamed-type-template-args]

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195589 91177308-0d34-0410-b5e6-96231b3b80d8
Take cv-qualifiers on fields of class type into account when determining
whether a defaulted special member function should be deleted.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195620 91177308-0d34-0410-b5e6-96231b3b80d8
Tests for core issues 270-300.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195626 91177308-0d34-0410-b5e6-96231b3b80d8