### Godot version

4.0.beta14

### System information

windows 10, gles 3, nvidia graphics

### Issue description

SCREEN_TEXTURE  was dropped in beta 14. The suggested replacement is to use ```uniform sampler2D SCREEN_TEXTURE : hint_screen_texture, filter_linear_mipmaps;```, but filter_linear_mipmaps is not recognized as a valid shader type hint and a shader using it fails to compile.

### Steps to reproduce

Create a canvas item shader and use the filter_linear_mipmaps type hint with a sampler2D uniform.

### Minimal reproduction project

N/A
bool result = true;
	if (p_datatype_a == TYPE_STRUCT || p_datatype_b == TYPE_STRUCT) {
		if (p_datatype_name_a != p_datatype_name_b) {
			result = false;
		}
	} else {
		if (p_datatype_a != p_datatype_b) {
			result = false;
		}
	}
	if (p_array_size_a != p_array_size_b) {
		result = false;
	}
	if (!result) {