Include some headers explicitly in some important spots, to estimate include costs better.

core/object/ref_counted.h

@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/object/class_db.h"
+#include "core/object/object.h"
 #include "core/templates/safe_refcount.h"
 
 class RefCounted : public Object {

core/variant/variant.h

@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/core_string_names.h"
+#include "core/error/error_macros.h"
 #include "core/io/ip_address.h"
 #include "core/math/aabb.h"
 #include "core/math/basis.h"
@@ -53,9 +54,11 @@
 #include "core/string/node_path.h"
 #include "core/string/ustring.h"
 #include "core/templates/bit_field.h"
+#include "core/templates/hashfuncs.h"
 #include "core/templates/list.h"
 #include "core/templates/paged_allocator.h"
 #include "core/templates/rid.h"
+#include "core/typedefs.h"
 #include "core/variant/array.h"
 #include "core/variant/callable.h"
 #include "core/variant/dictionary.h"

editor/plugins/editor_plugin.h

@@ -34,6 +34,7 @@
 #include "editor/inspector/editor_context_menu_plugin.h"
 #include "scene/3d/camera_3d.h"
 #include "scene/gui/control.h"
+#include "scene/main/node.h"
 
 class Node3D;
 class Button;

scene/main/node.h

@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/input/input_event.h"
+#include "core/object/object.h"
 #include "core/object/ref_counted.h"
 #include "core/string/node_path.h"
 #include "core/templates/iterable.h"