Unify default construction of error_code uses on this idiom so that users don't
feel compelled to make static globals for naming convenience. (unfortunately I
couldn't make the original ctor private as some APIs don't return their result,
instead using an out parameter (that makes sense to default construct) - which
is a bit of a pity. I did, however, find/fix some cases of unnecessary default
construction of error_code before I hit the unfixable cases)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150197 91177308-0d34-0410-b5e6-96231b3b80d8
Replace it with llvm-config.h, which defines a subset of
config.h's macros "so that they can be in exported headers
and won't override package specific directives", e.g.,
PACKAGE_NAME.
Endian.h wasn't using any macros at all though, so just delete
the include there instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133712 91177308-0d34-0410-b5e6-96231b3b80d8
