doc: Sync classref with current source

doc/classes/@GDScript.xml

@@ -259,12 +259,12 @@
 			</description>
 		</method>
 		<method name="decimals">
-			<return type="float">
+			<return type="int">
 			</return>
 			<argument index="0" name="step" type="float">
 			</argument>
 			<description>
-				Deprecated alias for "[method step_decimals]". 
+				Deprecated alias for "[method step_decimals]".
 			</description>
 		</method>
 		<method name="dectime">
@@ -1020,7 +1020,7 @@
 			</description>
 		</method>
 		<method name="step_decimals">
-			<return type="float">
+			<return type="int">
 			</return>
 			<argument index="0" name="step" type="float">
 			</argument>

doc/classes/BaseButton.xml

@@ -57,6 +57,9 @@
 		<member name="group" type="ButtonGroup" setter="set_button_group" getter="get_button_group">
 			[ButtonGroup] associated to the button.
 		</member>
+		<member name="keep_pressed_outside" type="bool" setter="set_keep_pressed_outside" getter="is_keep_pressed_outside">
+			If [code]true[/code], the button stays pressed when moving the cursor outside the button while pressing it. Default value: [code]false[/code].
+		</member>
 		<member name="pressed" type="bool" setter="set_pressed" getter="is_pressed">
 			If [code]true[/code], the button's state is pressed. Means the button is pressed down or toggled (if toggle_mode is active).
 		</member>
@@ -69,9 +72,6 @@
 		<member name="toggle_mode" type="bool" setter="set_toggle_mode" getter="is_toggle_mode">
 			If [code]true[/code], the button is in toggle mode. Makes the button flip state between pressed and unpressed each time its area is clicked.
 		</member>
-		<member name="keep_pressed_outside" type="bool" setter="set_keep_pressed_outside" getter="is_keep_pressed_outside">
-			If [code]true[/code], the button stays pressed when moving the cursor outside the button while pressing it. Default value: [code]false[/code].
-		</member>
 	</members>
 	<signals>
 		<signal name="button_down">

doc/classes/CheckButton.xml

@@ -41,8 +41,12 @@
 		</theme_item>
 		<theme_item name="off" type="Texture">
 		</theme_item>
+		<theme_item name="off_disabled" type="Texture">
+		</theme_item>
 		<theme_item name="on" type="Texture">
 		</theme_item>
+		<theme_item name="on_disabled" type="Texture">
+		</theme_item>
 		<theme_item name="pressed" type="StyleBox">
 		</theme_item>
 	</theme_items>

doc/classes/Font.xml

@@ -77,6 +77,16 @@
 				Return the size of a string, taking kerning and advance into account.
 			</description>
 		</method>
+		<method name="get_wordwrap_string_size" qualifiers="const">
+			<return type="Vector2">
+			</return>
+			<argument index="0" name="string" type="String">
+			</argument>
+			<argument index="1" name="p_width" type="float">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="has_outline" qualifiers="const">
 			<return type="bool">
 			</return>

doc/classes/FuncRef.xml

@@ -17,6 +17,12 @@
 				Calls the referenced function previously set by [method set_function] or [method @GDScript.funcref].
 			</description>
 		</method>
+		<method name="is_valid" qualifiers="const">
+			<return type="bool">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="set_function">
 			<return type="void">
 			</return>

doc/classes/MultiMesh.xml

@@ -59,7 +59,7 @@
 		<method name="set_as_bulk_array">
 			<return type="void">
 			</return>
-			<argument index="0" name="arg0" type="PoolRealArray">
+			<argument index="0" name="array" type="PoolRealArray">
 			</argument>
 			<description>
 				Set all data related to the instances in one go. This is especially useful when loading the data from disk or preparing the data from GDNative.

doc/classes/OptionButton.xml

@@ -202,14 +202,14 @@
 	</members>
 	<signals>
 		<signal name="item_focused">
-			<argument index="0" name="ID" type="int">
+			<argument index="0" name="id" type="int">
 			</argument>
 			<description>
 				This signal is emitted when user navigated to an item using [code]ui_up[/code] or [code]ui_down[/code] action. ID of the item selected is passed as argument.
 			</description>
 		</signal>
 		<signal name="item_selected">
-			<argument index="0" name="ID" type="int">
+			<argument index="0" name="id" type="int">
 			</argument>
 			<description>
 				This signal is emitted when the current item was changed by the user. Index of the item selected is passed as argument.

doc/classes/PopupMenu.xml

@@ -527,14 +527,14 @@
 	</members>
 	<signals>
 		<signal name="id_focused">
-			<argument index="0" name="ID" type="int">
+			<argument index="0" name="id" type="int">
 			</argument>
 			<description>
 				This event is emitted when user navigated to an item of some id using [code]ui_up[/code] or [code]ui_down[/code] action.
 			</description>
 		</signal>
 		<signal name="id_pressed">
-			<argument index="0" name="ID" type="int">
+			<argument index="0" name="id" type="int">
 			</argument>
 			<description>
 				This event is emitted when an item of some id is pressed or its accelerator is activated.

doc/classes/VisualServer.xml

@@ -2003,17 +2003,6 @@
 			<description>
 			</description>
 		</method>
-		<method name="light_set_use_gi">
-			<return type="void">
-			</return>
-			<argument index="0" name="light" type="RID">
-			</argument>
-			<argument index="1" name="enabled" type="bool">
-			</argument>
-			<description>
-        Sets whether GI probes capture light information from this light.
-			</description>
-		</method>
 		<method name="light_set_color">
 			<return type="void">
 			</return>
@@ -2096,6 +2085,17 @@
 			<description>
 			</description>
 		</method>
+		<method name="light_set_use_gi">
+			<return type="void">
+			</return>
+			<argument index="0" name="light" type="RID">
+			</argument>
+			<argument index="1" name="enabled" type="bool">
+			</argument>
+			<description>
+				Sets whether GI probes capture light information from this light.
+			</description>
+		</method>
 		<method name="lightmap_capture_create">
 			<return type="RID">
 			</return>