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, 5 insertions, 0 deletions

diff --git a/scene/resources/surface_tool.cpp b/scene/resources/surface_tool.cpp
index 95eaf461e1..feba8c6c70 100644
--- a/scene/resources/surface_tool.cpp
+++ b/scene/resources/surface_tool.cpp
@@ -155,6 +155,7 @@ void SurfaceTool::add_vertex(const Vector3 &p_vertex) {
 
 	format |= Mesh::ARRAY_FORMAT_VERTEX;
 }
+
 void SurfaceTool::add_color(Color p_color) {
 	ERR_FAIL_COND(!begun);
 
@@ -163,6 +164,7 @@ void SurfaceTool::add_color(Color p_color) {
 	format |= Mesh::ARRAY_FORMAT_COLOR;
 	last_color = p_color;
 }
+
 void SurfaceTool::add_normal(const Vector3 &p_normal) {
 	ERR_FAIL_COND(!begun);
 
@@ -745,9 +747,11 @@ int SurfaceTool::mikktGetNumFaces(const SMikkTSpaceContext *pContext) {
 		return triangle_data.vertices.size() / 3;
 	}
 }
+
 int SurfaceTool::mikktGetNumVerticesOfFace(const SMikkTSpaceContext *pContext, const int iFace) {
 	return 3; //always 3
 }
+
 void SurfaceTool::mikktGetPosition(const SMikkTSpaceContext *pContext, float fvPosOut[], const int iFace, const int iVert) {
 	TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
 	Vector3 v;
@@ -781,6 +785,7 @@ void SurfaceTool::mikktGetNormal(const SMikkTSpaceContext *pContext, float fvNor
 	fvNormOut[1] = v.y;
 	fvNormOut[2] = v.z;
 }
+
 void SurfaceTool::mikktGetTexCoord(const SMikkTSpaceContext *pContext, float fvTexcOut[], const int iFace, const int iVert) {
 	TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
 	Vector2 v;