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/iphone/icloud.mm b/platform/iphone/icloud.mm
index 343af744d5..c768274b1f 100644
--- a/platform/iphone/icloud.mm
+++ b/platform/iphone/icloud.mm
@@ -282,6 +282,7 @@ Error ICloud::synchronize_key_values() {
 		return FAILED;
 	}
 }
+
 /*
 Error ICloud::initial_sync() {
 	//you sometimes have to write something to the store to get it to download new data.  go apple!
@@ -296,6 +297,7 @@ Error ICloud::initial_sync() {
 		}
 		return synchronize();
 }
+
 */
 ICloud::ICloud() {
 	ERR_FAIL_COND(instance != NULL);
diff --git a/platform/iphone/in_app_store.mm b/platform/iphone/in_app_store.mm
index f3e8ff141b..a2efd6691b 100644
--- a/platform/iphone/in_app_store.mm
+++ b/platform/iphone/in_app_store.mm
@@ -57,6 +57,7 @@ NSMutableDictionary *pending_transactions = [NSMutableDictionary dictionary];
 	[numberFormatter release];
 	return formattedString;
 }
+
 @end
 
 InAppStore *InAppStore::instance = NULL;