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.

4 files changed, 17 insertions, 0 deletions

diff --git a/modules/lightmapper_rd/lightmapper_rd.cpp b/modules/lightmapper_rd/lightmapper_rd.cpp
index cf54754a16..b55c73e9bc 100644
--- a/modules/lightmapper_rd/lightmapper_rd.cpp
+++ b/modules/lightmapper_rd/lightmapper_rd.cpp
@@ -64,6 +64,7 @@ void LightmapperRD::add_directional_light(bool p_static, const Vector3 &p_direct
 	l.size = p_angular_distance;
 	lights.push_back(l);
 }
+
 void LightmapperRD::add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_size) {
 	Light l;
 	l.type = LIGHT_TYPE_OMNI;
@@ -80,6 +81,7 @@ void LightmapperRD::add_omni_light(bool p_static, const Vector3 &p_position, con
 	l.size = p_size;
 	lights.push_back(l);
 }
+
 void LightmapperRD::add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size) {
 	Light l;
 	l.type = LIGHT_TYPE_SPOT;
@@ -1700,17 +1702,21 @@ LightmapperRD::BakeError LightmapperRD::bake(BakeQuality p_quality, bool p_use_d
 int LightmapperRD::get_bake_texture_count() const {
 	return bake_textures.size();
 }
+
 Ref<Image> LightmapperRD::get_bake_texture(int p_index) const {
 	ERR_FAIL_INDEX_V(p_index, bake_textures.size(), Ref<Image>());
 	return bake_textures[p_index];
 }
+
 int LightmapperRD::get_bake_mesh_count() const {
 	return mesh_instances.size();
 }
+
 Variant LightmapperRD::get_bake_mesh_userdata(int p_index) const {
 	ERR_FAIL_INDEX_V(p_index, mesh_instances.size(), Variant());
 	return mesh_instances[p_index].data.userdata;
 }
+
 Rect2 LightmapperRD::get_bake_mesh_uv_scale(int p_index) const {
 	ERR_FAIL_COND_V(bake_textures.size() == 0, Rect2());
 	Rect2 uv_ofs;
@@ -1719,6 +1725,7 @@ Rect2 LightmapperRD::get_bake_mesh_uv_scale(int p_index) const {
 	uv_ofs.size = Vector2(mesh_instances[p_index].data.albedo_on_uv2->get_width(), mesh_instances[p_index].data.albedo_on_uv2->get_height()) / atlas_size;
 	return uv_ofs;
 }
+
 int LightmapperRD::get_bake_mesh_texture_slice(int p_index) const {
 	ERR_FAIL_INDEX_V(p_index, mesh_instances.size(), Variant());
 	return mesh_instances[p_index].slice;
diff --git a/modules/lightmapper_rd/lm_common_inc.glsl b/modules/lightmapper_rd/lm_common_inc.glsl
index 0ff455936e..15946d5327 100644
--- a/modules/lightmapper_rd/lm_common_inc.glsl
+++ b/modules/lightmapper_rd/lm_common_inc.glsl
@@ -11,6 +11,7 @@ struct Vertex {
 layout(set = 0, binding = 1, std430) restrict readonly buffer Vertices {
 	Vertex data[];
 }
+
 vertices;
 
 struct Triangle {
@@ -21,6 +22,7 @@ struct Triangle {
 layout(set = 0, binding = 2, std430) restrict readonly buffer Triangles {
 	Triangle data[];
 }
+
 triangles;
 
 struct Box {
@@ -33,11 +35,13 @@ struct Box {
 layout(set = 0, binding = 3, std430) restrict readonly buffer Boxes {
 	Box data[];
 }
+
 boxes;
 
 layout(set = 0, binding = 4, std430) restrict readonly buffer GridIndices {
 	uint data[];
 }
+
 grid_indices;
 
 #define LIGHT_TYPE_DIRECTIONAL 0
@@ -66,6 +70,7 @@ struct Light {
 layout(set = 0, binding = 5, std430) restrict readonly buffer Lights {
 	Light data[];
 }
+
 lights;
 
 struct Seam {
@@ -76,11 +81,13 @@ struct Seam {
 layout(set = 0, binding = 6, std430) restrict readonly buffer Seams {
 	Seam data[];
 }
+
 seams;
 
 layout(set = 0, binding = 7, std430) restrict readonly buffer Probes {
 	vec4 data[];
 }
+
 probe_positions;
 
 layout(set = 0, binding = 8) uniform utexture3D grid;
diff --git a/modules/lightmapper_rd/lm_compute.glsl b/modules/lightmapper_rd/lm_compute.glsl
index 5a1f1ceda3..a442016969 100644
--- a/modules/lightmapper_rd/lm_compute.glsl
+++ b/modules/lightmapper_rd/lm_compute.glsl
@@ -36,6 +36,7 @@ layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
 layout(set = 1, binding = 0, std430) restrict buffer LightProbeData {
 	vec4 data[];
 }
+
 light_probes;
 
 layout(set = 1, binding = 1) uniform texture2DArray source_light;
@@ -93,6 +94,7 @@ layout(push_constant, binding = 0, std430) uniform Params {
 
 	mat3x4 env_transform;
 }
+
 params;
 
 //check it, but also return distance and barycentric coords (for uv lookup)
diff --git a/modules/lightmapper_rd/lm_raster.glsl b/modules/lightmapper_rd/lm_raster.glsl
index 41b3e89a3f..36b706bcd5 100644
--- a/modules/lightmapper_rd/lm_raster.glsl
+++ b/modules/lightmapper_rd/lm_raster.glsl
@@ -26,6 +26,7 @@ layout(push_constant, binding = 0, std430) uniform Params {
 	ivec3 grid_size;
 	uint pad2;
 }
+
 params;
 
 /* clang-format on */