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, 3 insertions, 0 deletions

diff --git a/scene/2d/skeleton_2d.cpp b/scene/2d/skeleton_2d.cpp
index e21f7ff836..2c041f7449 100644
--- a/scene/2d/skeleton_2d.cpp
+++ b/scene/2d/skeleton_2d.cpp
@@ -77,6 +77,7 @@ void Bone2D::_notification(int p_what) {
 		parent_bone = nullptr;
 	}
 }
+
 void Bone2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_rest", "rest"), &Bone2D::set_rest);
 	ClassDB::bind_method(D_METHOD("get_rest"), &Bone2D::get_rest);
@@ -128,6 +129,7 @@ int Bone2D::get_index_in_skeleton() const {
 	skeleton->_update_bone_setup();
 	return skeleton_index;
 }
+
 String Bone2D::get_configuration_warning() const {
 	String warning = Node2D::get_configuration_warning();
 	if (!skeleton) {
@@ -268,6 +270,7 @@ void Skeleton2D::_notification(int p_what) {
 RID Skeleton2D::get_skeleton() const {
 	return skeleton;
 }
+
 void Skeleton2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_update_bone_setup"), &Skeleton2D::_update_bone_setup);
 	ClassDB::bind_method(D_METHOD("_update_transform"), &Skeleton2D::_update_transform);