### 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
3,
		4,
		1,
		2,
		3,
		4,
		1,
		2,
		3,
		4,
		4,
		9,
		16,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
		1,
	};
	static_assert(sizeof(cardinality_table) / sizeof(*cardinality_table) == TYPE_MAX);
	return cardinality_table[p_type];
}
bool ShaderLanguage::_get_completable_identifier(BlockNode *p_block, CompletionType p_type, StringName &identifier) {