### Godot version

Godot 4.0 Beta 11

### System information

Linux Ubunutu

### Issue description

Godot's 3.x project converter to 4.0 seems to be missing the conversion for two drag data related functions.

In 3.x the function for can drop data, was named  `can_drop_data` in 4.0 it is `_can_drop_data`.
And likewise 3.x had `drop_data` and 4.0 has `_drop_data`.

These two functions were not converted by the project converter (and were hard to notice)!


### Steps to reproduce

Convert a 3.x project to 4.0 with the functions: `can_drop_data` it will not convert to `_can_drop_data` nor `drop_data` to `_drop_data`.



### Minimal reproduction project

N/A
{ "ClipPolygons2d", "ClipPolygons" , 
	{ "ClipPolylineWithPolygon2d", "ClipPolylineWithPolygon" , 
	{ "CommitHandle", "_CommitHandle" , 
	{ "ConvexHull2d", "ConvexHull" , 
	{ "CursorGetBlinkSpeed", "GetCaretBlinkInterval" , 
	{ "CursorGetColumn", "GetCaretColumn" , 
	{ "CursorGetLine", "GetCaretLine" , 
	{ "CursorSetBlinkEnabled", "SetCaretBlinkEnabled" , 
	{ "CursorSetBlinkSpeed", "SetCaretBlinkInterval" , 
	{ "CursorSetColumn", "SetCaretColumn" , 
	{ "CursorSetLine", "SetCaretLine" , 
	{ "DampedSpringJointCreate", "JointMakeDampedSpring" , 
	{ "DampedStringJointGetParam", "DampedSpringJointGetParam" , 
	{ "DampedStringJointSetParam", "DampedSpringJointSetParam" , 
	{ "DeleteCharAtCursor", "DeleteCharAtCaret" , 
	{ "DeselectItems", "DeselectAll" , 
	{ "DropDataFw", "_DropDataFw" , 
	{ "ExcludePolygons2d", "ExcludePolygons" , 
	{ "FindScancodeFromString", "FindKeycodeFromString" , 
	{ "ForwardCanvasDrawOverViewport", "_ForwardCanvasDrawOverViewport" , 
	{ "ForwardCanvasForceDrawOverViewport", "_ForwardCanvasForceDrawOverViewport" , 
	{ "ForwardCanvasGuiInput", "_ForwardCanvasGuiInput" , 
	{ "ForwardSpatialDrawOverViewport", "_Forward3dDrawOverViewport" , 
	{ "ForwardSpatialForceDrawOverViewport", "_Forward3dForceDrawOverViewport" , 
	{ "ForwardSpatialGuiInput", "_Forward3dGuiInput" , 
	{ "GenerateFromPath", "_GenerateFromPath" , 
	{ "GenerateSmallPreviewAutomatically", "_GenerateSmallPreviewAutomatically" , 
	{ "GetActionList", "ActionGetEvents" , 
	{ "GetAlt", "IsAltPressed" , 
	{ "GetAnimationProcessMode", "GetProcessCallback" ,