WindowsSupport.h: do not depend on private config header

[andrewrk]

Summary

WindowsSupport.h is a public header, however if it gets included, will cause a compile error indicating that llvm/Config/config.h cannot be found, because config.h is a private header. However there is no actual dependency on the private things in this header, so it can be changed to the public config header.

[andrewrk]

I am still in the process of testing this change.

[andrewrk]

Confirmed, I have tested this change and it solves the problem.

[amccarth]

LGTM.

[andrewrk]

Thank you for having a look, Adrian! I would appreciate if you or someone else could commit for me since I do not have write access.

[mstorsjo]

In D103370#2791682, @andrewrk wrote:

Thank you for having a look, Adrian! I would appreciate if you or someone else could commit for me since I do not have write access.

Can you provide your preferred git author line in that case, i.e. Real Name <email@address>? (I'm sure I could dig up your signature somewhere too but asking in case you use multiple different ones) :-)

[andrewrk]

Andrew Kelley <[e-mail]>

Thanks Martin!

llvm/include/llvm/Support/Windows/WindowsSupport.h

 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Twine.h"
-#include "llvm/Config/config.h" // Get build system configuration settings
+#include "llvm/Config/llvm-config.h" // Get build system configuration settings
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Chrono.h"
 #include "llvm/Support/Compiler.h"