Style: Enforce separation line between function definitions

I couldn't find a tool that enforces it, so I went the manual route:
```
find -name "thirdparty" -prune \
  -o -name "*.cpp" -o -name "*.h" -o -name "*.m" -o -name "*.mm" \
  -o -name "*.glsl" > files
perl -0777 -pi -e 's/\n}\n([^#])/\n}\n\n\1/g' $(cat files)
misc/scripts/fix_style.sh -c
```

This adds a newline after all `}` on the first column, unless they
are followed by `#` (typically `#endif`). This leads to having lots
of places with two lines between function/class definitions, but
clang-format then fixes it as we enforce max one line of separation.

This doesn't fix potential occurrences of function definitions which
are indented (e.g. for a helper class defined in a .cpp), but it's
better than nothing. Also can't be made to run easily on CI/hooks so
we'll have to be careful with new code.

Part of #33027.

1 files changed, 4 insertions, 0 deletions

diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index 2104cacb6e..7e4d17f5e7 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -444,9 +444,11 @@ void OS_UWP::set_window_title(const String &p_title) {
 void OS_UWP::set_video_mode(const VideoMode &p_video_mode, int p_screen) {
 	video_mode = p_video_mode;
 }
+
 OS::VideoMode OS_UWP::get_video_mode(int p_screen) const {
 	return video_mode;
 }
+
 void OS_UWP::get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen) const {
 }
 
@@ -469,6 +471,7 @@ OS::Date OS_UWP::get_date(bool utc) const {
 	date.dst = false;
 	return date;
 }
+
 OS::Time OS_UWP::get_time(bool utc) const {
 	SYSTEMTIME systemtime;
 	if (utc)
@@ -529,6 +532,7 @@ void OS_UWP::delay_usec(uint32_t p_usec) const {
 	// no Sleep()
 	WaitForSingleObjectEx(GetCurrentThread(), msec, false);
 }
+
 uint64_t OS_UWP::get_ticks_usec() const {
 	uint64_t ticks;
 	uint64_t time;