Rename bytesobject.c back to stringobject.c to keep with the PyString theme.
Part of reverting most of r63675 per the mailing list discussion.
diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index a55f864..70d8724 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -1379,7 +1379,7 @@
 				>
 			</File>
 			<File
-				RelativePath="..\Objects\bytesobject.c"
+				RelativePath="..\Objects\stringobject.c"
 				>
 			</File>
 			<File