### 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
{ "TextureArray", "Texture2DArray" ,
	{ "TextureProgress", "TextureProgressBar" ,
	{ "ToolButton", "Button" ,
	{ "VehicleBody", "VehicleBody3D" ,
	{ "VehicleWheel", "VehicleWheel3D" ,
	{ "VideoPlayer", "VideoStreamPlayer" ,
	{ "Viewport", "SubViewport" ,
	{ "ViewportContainer", "SubViewportContainer" ,
	{ "VisibilityEnabler", "VisibleOnScreenEnabler3D" ,
	{ "VisibilityEnabler2D", "VisibleOnScreenEnabler2D" ,
	{ "VisibilityNotifier", "VisibleOnScreenNotifier3D" ,
	{ "VisibilityNotifier2D", "VisibleOnScreenNotifier2D" ,
	{ "VisibilityNotifier3D", "VisibleOnScreenNotifier3D" ,
	{ "VisualInstance", "VisualInstance3D" ,
	{ "VisualServer", "RenderingServer" ,
	{ "VisualShaderNodeCubeMap", "VisualShaderNodeCubemap" ,
	{ "VisualShaderNodeScalarClamp", "VisualShaderNodeClamp" ,
	{ "VisualShaderNodeScalarConstant", "VisualShaderNodeFatConstant" ,
	{ "VisualShaderNodeScalarFunc", "VisualShaderNodeFatFunc" ,
	{ "VisualShaderNodeScalarInterp", "VisualShaderNodeMix" ,
	{ "VisualShaderNodeScalarOp", "VisualShaderNodeFatOp" ,
	{ "VisualShaderNodeScalarSmoothStep", "VisualShaderNodeSmoothStep" ,
	{ "VisualShaderNodeScalarSwitch", "VisualShaderNodeSwitch" ,
	{ "VisualShaderNodeScalarTransformMult", "VisualShaderNodeTransformOp" ,
	{ "VisualShaderNodeTransformMult", "VisualShaderNode" ,
	{ "VisualShaderNodeVectorClamp", "VisualShaderNodeClamp" ,
	{ "VisualShaderNodeVectorInterp", "VisualShaderNodeMix" ,
	{ "VisualShaderNodeVectorScalarMix", "VisualShaderNodeMix" ,
	{ "VisualShaderNodeVectorScalarSmoothStep", "VisualShaderNodeSmoothStep" ,
	{ "VisualShaderNodeVectorScalarStep", "VisualShaderNodeStep" ,