### 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
"TYPE_INT",
	"TYPE_IVEC2",
	"TYPE_IVEC3",
	"TYPE_IVEC4",
	"TYPE_UINT",
	"TYPE_UVEC2",
	"TYPE_UVEC3",
	"TYPE_UVEC4",
	"TYPE_FLOAT",
	"TYPE_VEC2",
	"TYPE_VEC3",
	"TYPE_VEC4",
	"TYPE_MAT2",
	"TYPE_MAT3",
	"TYPE_MAT4",
	"TYPE_SAMPLER2D",
	"TYPE_ISAMPLER2D",
	"TYPE_USAMPLER2D",
	"TYPE_SAMPLER2DARRAY",
	"TYPE_ISAMPLER2DARRAY",
	"TYPE_USAMPLER2DARRAY",
	"TYPE_SAMPLER3D",
	"TYPE_ISAMPLER3D",
	"TYPE_USAMPLER3D",
	"TYPE_SAMPLERCUBE",
	"TYPE_SAMPLERCUBEARRAY",
	"INTERPOLATION_FLAT",
	"INTERPOLATION_SMOOTH",
	"CONST",
	"PRECISION_LOW",