### 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
{ "RemoveCorOverride", "RemoveThemeCorOverride" , 
	{ "RemoveConstantOverride", "RemoveThemeConstantOverride" , 
	{ "RemoveFontOverride", "RemoveThemeFontOverride" , 
	{ "RemoveSceneImportPlugin", "RemoveSceneFormatImporterPlugin" , 
	{ "RemoveSpatialGizmoPlugin", "RemoveNode3dGizmoPlugin" , 
	{ "RemoveStyleboxOverride", "RemoveThemeStyleboxOverride" , 
	{ "RenameAnimation", "RenameAnimationLibrary" , 
	{ "RenameDependencies", "_RenameDependencies" , 
	{ "SaveExternalData", "_SaveExternalData" , 
	{ "SegmentIntersectsSegment2d", "SegmentIntersectsSegment" , 
	{ "SetAdjustmentEnable", "SetAdjustmentEnabled" , 
	{ "SetAlt", "SetAltPressed" , 
	{ "SetAnchorAndMargin", "SetAnchorAndOffset" , 
	{ "SetAnchorsAndMarginsPreset", "SetAnchorsAndOffsetsPreset" , 
	{ "SetAnimationProcessMode", "SetProcessCallback" , 
	{ "SetAsBulkArray", "SetBuffer" , 
	{ "SetAsNormalmap", "SetAsNormalMap" , 
	{ "SetAsToplevel", "SetAsTopLevel" , 
	{ "SetAudioBus", "SetAudioBusName" , 
	{ "SetAutowrap", "SetAutowrapMode" , 
	{ "SetCastTo", "SetTargetPition" , 
	{ "SetCollisionLayerBit", "SetCollisionLayerValue" , 
	{ "SetCollisionMaskBit", "SetCollisionMaskValue" , 
	{ "SetColumnMinWidth", "SetColumnCustomMinimumWidth" , 
	{ "SetCommand", "SetCommandPressed" , 
	{ "SetControl", "SetCtrlPressed" , 
	{ "SetCreateOptions", "_SetCreateOptions" , 
	{ "SetCullMaskBit", "SetCullMaskValue" , 
	{ "SetCursorPition", "SetCaretColumn" , 
	{ "SetD", "SetDistance" ,