doc: Sync classref with current source

doc/classes/@GDScript.xml

@@ -412,7 +412,7 @@
 			</description>
 		</method>
 		<method name="get_stack">
-			<return type="void">
+			<return type="Array">
 			</return>
 			<description>
 			</description>

doc/classes/CanvasItem.xml

@@ -330,6 +330,12 @@
 				Draws a textured rectangle region at a given position, optionally modulated by a color. Transpose swaps the x and y coordinates when reading the texture.
 			</description>
 		</method>
+		<method name="force_update_transform">
+			<return type="void">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_canvas" qualifiers="const">
 			<return type="RID">
 			</return>

doc/classes/Control.xml

@@ -723,7 +723,7 @@
 			</description>
 		</signal>
 		<signal name="gui_input">
-			<argument index="0" name="ev" type="InputEvent">
+			<argument index="0" name="event" type="InputEvent">
 			</argument>
 			<description>
 				Emitted when the node receives an [InputEvent].

doc/classes/MainLoop.xml

@@ -47,7 +47,7 @@
 		<method name="_input_event" qualifiers="virtual">
 			<return type="void">
 			</return>
-			<argument index="0" name="ev" type="InputEvent">
+			<argument index="0" name="event" type="InputEvent">
 			</argument>
 			<description>
 			</description>
@@ -91,7 +91,7 @@
 		<method name="input_event">
 			<return type="void">
 			</return>
-			<argument index="0" name="ev" type="InputEvent">
+			<argument index="0" name="event" type="InputEvent">
 			</argument>
 			<description>
 			</description>

doc/classes/MultiMesh.xml

@@ -30,6 +30,14 @@
 				Get the color of a specific instance.
 			</description>
 		</method>
+		<method name="get_instance_custom_data" qualifiers="const">
+			<return type="Color">
+			</return>
+			<argument index="0" name="instance" type="int">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="get_instance_transform" qualifiers="const">
 			<return type="Transform">
 			</return>
@@ -50,6 +58,16 @@
 				Set the color of a specific instance.
 			</description>
 		</method>
+		<method name="set_instance_custom_data">
+			<return type="void">
+			</return>
+			<argument index="0" name="instance" type="int">
+			</argument>
+			<argument index="1" name="custom_data" type="Color">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="set_instance_transform">
 			<return type="void">
 			</return>
@@ -65,6 +83,8 @@
 	<members>
 		<member name="color_format" type="int" setter="set_color_format" getter="get_color_format" enum="MultiMesh.ColorFormat">
 		</member>
+		<member name="custom_data_format" type="int" setter="set_custom_data_format" getter="get_custom_data_format" enum="MultiMesh.CustomDataFormat">
+		</member>
 		<member name="instance_count" type="int" setter="set_instance_count" getter="get_instance_count">
 		</member>
 		<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
@@ -83,5 +103,11 @@
 		</constant>
 		<constant name="COLOR_FLOAT" value="2" enum="ColorFormat">
 		</constant>
+		<constant name="CUSTOM_DATA_NONE" value="0" enum="CustomDataFormat">
+		</constant>
+		<constant name="CUSTOM_DATA_8BIT" value="1" enum="CustomDataFormat">
+		</constant>
+		<constant name="CUSTOM_DATA_FLOAT" value="2" enum="CustomDataFormat">
+		</constant>
 	</constants>
 </class>

doc/classes/Spatial.xml

@@ -13,6 +13,12 @@
 	<demos>
 	</demos>
 	<methods>
+		<method name="force_update_transform">
+			<return type="void">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_parent_spatial" qualifiers="const">
 			<return type="Spatial">
 			</return>