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, 2 insertions, 0 deletions

diff --git a/servers/physics_3d/area_3d_sw.h b/servers/physics_3d/area_3d_sw.h
index f64c84b5ab..d85a7fc509 100644
--- a/servers/physics_3d/area_3d_sw.h
+++ b/servers/physics_3d/area_3d_sw.h
@@ -170,6 +170,7 @@ void Area3DSW::add_body_to_query(Body3DSW *p_body, uint32_t p_body_shape, uint32
 	if (!monitor_query_list.in_list())
 		_queue_monitor_update();
 }
+
 void Area3DSW::remove_body_from_query(Body3DSW *p_body, uint32_t p_body_shape, uint32_t p_area_shape) {
 	BodyKey bk(p_body, p_body_shape, p_area_shape);
 	monitored_bodies[bk].dec();
@@ -183,6 +184,7 @@ void Area3DSW::add_area_to_query(Area3DSW *p_area, uint32_t p_area_shape, uint32
 	if (!monitor_query_list.in_list())
 		_queue_monitor_update();
 }
+
 void Area3DSW::remove_area_from_query(Area3DSW *p_area, uint32_t p_area_shape, uint32_t p_self_shape) {
 	BodyKey bk(p_area, p_area_shape, p_self_shape);
 	monitored_areas[bk].dec();