swift

2dfd3d5b - [Runtime] Remove dependency on Compiler.h from Config.h.

[Runtime] Remove dependency on Compiler.h from Config.h. The runtime doesn't really need Compiler.h. It just needs some visibility macros which can be inlined here instead of pulling the whole heavyweight header (including its transitive closure, llvm-config.h). This is becoming more important now that Compiler.h includes C++ headers (namely, <new>), and swift/Runtime/Config.h can be included from C or Objective-C files (causing build failures). <rdar://problem/35860874>