### 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
return ERR_PARSE_ERROR;
					}
				}
				if (is_struct) {
					type = TYPE_STRUCT;
				} else {
					type = get_token_datatype(tk.type);
				}
				if (precision != PRECISION_DEFAULT && _validate_precision(type, precision) != OK) {
					return ERR_PARSE_ERROR;
				}
				prev_pos = _get_tkpos();
				tk = _get_token();
#ifdef DEBUG_ENABLED
				keyword_completion_context = CF_UNSPECIFIED;
#endif 
				bool unknown_size = false;
				bool fixed_array_size = false;
				if (tk.type == TK_BRACKET_OPEN) {
					Error error = _parse_array_size(nullptr, constants, !is_constant, nullptr, &array_size, &unknown_size);
					if (error != OK) {
						return error;
					}
					fixed_array_size = true;
					prev_pos = _get_tkpos();
				}
				_set_tkpos(prev_pos);
				_get_completable_identifier(nullptr, COMPLETION_MAIN_FUNCTION, name);
				if (name == StringName()) {
					if (is_constant) {