Both swiftRuntime and swift_Concurrency had swift::fatalError
implementation, but it causes symbol conflict when -static-stdlib.
This patch renames one of the impl in swift_Concurrency to avoid
conflict.
- CYGWIN symbol is used to distinguish Cygwin environment from other OS
and other environment in Windows.
- Added windows and windowsCygnus to OSVersion in StdlibUnittest
Always include all the sources as we cannot include object libraries to be
subsumed. This allows us to conditionally build the swift runtime for foreign
hosts simultaneously (e.g. cross compile for Linux and Windows simultaneously).
This patch is for libswiftCore.lib, linking with the library set of Visual Studio 2015. Clang with the option -fms-extension is used to build this port.
This is the approved subpatch of a large patch.
