Fix up more shit

ui/Frame.lua

@@ -15,7 +15,7 @@
 --- </Frame>
 ---
 ---Frames in the FrameXML include the action bars (the frames that group the action buttons together), the panels that display information like your character status and quest log, and the grand-daddy of the rest of the UI, UIParent.
----@class Frame
+---@class Frame : UIObject
 Frame = {
 	---Sets whether the frame should automatically come to the front when clicked. When a frame with Toplevel behavior enabled is clicked, it automatically changes its frame level such that it is greater than (and therefore drawn "in front of") all other frames in its strata.
 	---@param self Frame
@@ -52,5 +52,25 @@ Frame = {
 	---Unregistering from notifications for an event can be useful for improving addon performance at times when it's not necessary to process the event. For example, a frame which monitors target health does not need to receive the UNIT_HEALTH event while the player has no target. An addon that sorts the contents of the player's bags can register for the BAG_UPDATE event to keep track of when items are picked up, but unregister from the event while it performs its sorting.
 	---@param self Frame
 	---@param event string Name of an event
-	UnregisterEvent = function(self, event) end
+	UnregisterEvent = function(self, event) end,
+
+	---Returns whether the mouse cursor is over the given region. This function replaces the previous MouseIsOver FrameXML function.
+	---
+	---If provided, the arguments are treated as offsets by which to adjust the hit rectangle when comparing it to the mouse. They are in screen coordinates; positive offsets move an edge right or up, negative values move it left or down. No frame edges are actually moved. For example:
+	---
+	--- if button:IsMouseOver(2, -2, -2, 2) then
+	---
+	---will return true if the mouse is within 2 pixels of the given frame.
+	---@overload fun(self: Frame): boolean
+	---@overload fun(self: Frame, topOffset: number): boolean
+	---@overload fun(self: Frame, topOffset: number, leftOffset: number): boolean
+	---@overload fun(self: Frame, topOffset: number, leftOffset: number, bottomOffset: number): boolean
+	---@overload fun(self: Frame, topOffset: number, leftOffset: number, bottomOffset: number, rightOffset: number): boolean
+	---@param self Frame
+	---@param topOffset number The amount by which to displace the top edge of the test rectangle
+	---@param leftOffset number The amount by which to displace the left edge of the test rectangle
+	---@param bottomOffset number The amount by which to displace the bottom edge of the test rectangle
+	---@param rightOffset number The amount by which to displace the right edge of the test rectangle
+	---@return boolean isOver true if the mouse is over the region; otherwise false
+	IsMouseOver = function(self, topOffset, leftOffset, bottomOffset, rightOffset) end
 }