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.

2 files changed, 3 insertions, 0 deletions

diff --git a/platform/osx/display_server_osx.mm b/platform/osx/display_server_osx.mm
index 46ddc23d8a..1cdcdbcaf5 100644
--- a/platform/osx/display_server_osx.mm
+++ b/platform/osx/display_server_osx.mm
@@ -149,6 +149,7 @@ static NSCursor *_cursorFromSelector(SEL selector, SEL fallback = nil) {
 	Variant meta;
 	bool checkable;
 }
+
 @end
 
 @implementation GlobalMenuItem
@@ -1422,6 +1423,7 @@ inline void sendPanEvent(DisplayServer::WindowID window_id, double dx, double dy
 
 @interface GodotWindow : NSWindow {
 }
+
 @end
 
 @implementation GodotWindow
diff --git a/platform/osx/joypad_osx.cpp b/platform/osx/joypad_osx.cpp
index 52cceae3fd..d342d30097 100644
--- a/platform/osx/joypad_osx.cpp
+++ b/platform/osx/joypad_osx.cpp
@@ -98,6 +98,7 @@ int joypad::get_hid_element_state(rec_element *p_element) const {
 	}
 	return value;
 }
+
 void joypad::add_hid_element(IOHIDElementRef p_element) {
 	const CFTypeID elementTypeID = p_element ? CFGetTypeID(p_element) : 0;