### 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
{ "IsStaticBody", "IsAbleToSleep" , 
	{ "IsVDragEnabled", "IsDragVerticalEnabled" , 
	{ "JointCreateConeTwist", "JointMakeConeTwist" , 
	{ "JointCreateGeneric6dof", "JointMakeGeneric6dof" , 
	{ "JointCreateHinge", "JointMakeHinge" , 
	{ "JointCreatePin", "JointMakePin" , 
	{ "JointCreateSlider", "JointMakeSlider" , 
	{ "LineIntersectsLine2d", "LineIntersectsLine" , 
	{ "LoadFromGbals", "LoadFromProjectSettings" , 
	{ "MakeConvexFromBrothers", "MakeConvexFromSiblings" , 
	{ "MergePolygons2d", "MergePolygons" , 
	{ "MeshSurfaceGetFormat", "MeshSurfaceGetFormatAttributeStride" , 
	{ "MeshSurfaceUpdateRegion", "MeshSurfaceUpdateAttributeRegion" , 
	{ "MoveToBottom", "MoveAfter" , 
	{ "MoveToTop", "MoveBefore" , 
	{ "MultimeshAlcate", "MultimeshAlcateData" , 
	{ "NormalmapToXy", "NormalMapToXy" , 
	{ "OffsetPolygon2d", "OffsetPolygon" , 
	{ "OffsetPolyline2d", "OffsetPolyline" , 
	{ "PercentDecode", "UriDecode" , 
	{ "PercentEncode", "UriEncode" , 
	{ "PinJointCreate", "JointMakePin" , 
	{ "PopupCenteredMinsize", "PopupCenteredClamped" , 
	{ "PtImport", "_PtImport" , 
	{ "PrintStrayNodes", "PrintOrphanNodes" , 
	{ "PropertyListChangedNotify", "NotifyPropertyListChanged" , 
	{ "Recognize", "_Recognize" , 
	{ "RegenNormalmaps", "RegenNormalMaps" , 
	{ "Remove", "RemoveAt" , 
	{ "RemoveAnimation", "RemoveAnimationLibrary" ,