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/editor/animation_bezier_editor.cpp b/editor/animation_bezier_editor.cpp
index 893a3f62b1..dededfb617 100644
--- a/editor/animation_bezier_editor.cpp
+++ b/editor/animation_bezier_editor.cpp
@@ -509,6 +509,7 @@ void AnimationBezierTrackEdit::set_timeline(AnimationTimelineEdit *p_timeline) {
 	timeline = p_timeline;
 	timeline->connect("zoom_changed", callable_mp(this, &AnimationBezierTrackEdit::_zoom_changed));
 }
+
 void AnimationBezierTrackEdit::set_editor(AnimationTrackEditor *p_editor) {
 	editor = p_editor;
 	connect_compat("clear_selection", editor, "_clear_selection", varray(false));
@@ -541,6 +542,7 @@ void AnimationBezierTrackEdit::update_play_position() {
 void AnimationBezierTrackEdit::set_root(Node *p_root) {
 	root = p_root;
 }
+
 void AnimationBezierTrackEdit::_zoom_changed() {
 	update();
 }