Merge pull request #3797 from WalterBright/nothrow

add nothrow to windows files

Author: RazvanN7

src/core/sys/windows/objbase.d

@@ -9,6 +9,7 @@
 module core.sys.windows.objbase;
 version (Windows):
 @system:
+nothrow:
 pragma(lib, "ole32");
 
 import core.sys.windows.cguid, core.sys.windows.objidl, core.sys.windows.unknwn, core.sys.windows.wtypes;

src/core/sys/windows/unknwn.d

@@ -9,6 +9,7 @@
 module core.sys.windows.unknwn;
 version (Windows):
 @system:
+nothrow:
 
 import core.sys.windows.objfwd, core.sys.windows.windef, core.sys.windows.wtypes;
 import core.sys.windows.basetyps;