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/core/io/config_file.cpp b/core/io/config_file.cpp
index 902d3cde9f..334c8f143e 100644
--- a/core/io/config_file.cpp
+++ b/core/io/config_file.cpp
@@ -78,6 +78,7 @@ void ConfigFile::set_value(const String &p_section, const String &p_key, const V
 		values[p_section][p_key] = p_value;
 	}
 }
+
 Variant ConfigFile::get_value(const String &p_section, const String &p_key, Variant p_default) const {
 	if (!values.has(p_section) || !values[p_section].has(p_key)) {
 		ERR_FAIL_COND_V_MSG(p_default.get_type() == Variant::NIL, Variant(),
@@ -91,6 +92,7 @@ Variant ConfigFile::get_value(const String &p_section, const String &p_key, Vari
 bool ConfigFile::has_section(const String &p_section) const {
 	return values.has(p_section);
 }
+
 bool ConfigFile::has_section_key(const String &p_section, const String &p_key) const {
 	if (!values.has(p_section))
 		return false;
@@ -102,6 +104,7 @@ void ConfigFile::get_sections(List<String> *r_sections) const {
 		r_sections->push_back(E.key());
 	}
 }
+
 void ConfigFile::get_section_keys(const String &p_section, List<String> *r_keys) const {
 	ERR_FAIL_COND_MSG(!values.has(p_section), vformat("Cannot get keys from nonexistent section \"%s\".", p_section));