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/plugins/tile_set_editor_plugin.cpp b/editor/plugins/tile_set_editor_plugin.cpp
index e096ed933e..9ab7e7ae8a 100644
--- a/editor/plugins/tile_set_editor_plugin.cpp
+++ b/editor/plugins/tile_set_editor_plugin.cpp
@@ -2358,6 +2358,7 @@ void TileSetEditor::_zoom_in() {
 		workspace_overlay->set_custom_minimum_size(workspace->get_rect().size * scale);
 	}
 }
+
 void TileSetEditor::_zoom_out() {
 	float scale = workspace->get_scale().x;
 	if (scale > min_scale) {
@@ -2367,6 +2368,7 @@ void TileSetEditor::_zoom_out() {
 		workspace_overlay->set_custom_minimum_size(workspace->get_rect().size * scale);
 	}
 }
+
 void TileSetEditor::_zoom_reset() {
 	workspace->set_scale(Vector2(1, 1));
 	workspace_container->set_custom_minimum_size(workspace->get_rect().size);