### 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
if (!n) {
					_set_error(RTR("Invalid data type for the array."));
					return nullptr;
				}
				if (!_compare_datatypes(p_type, p_struct_name, p_array_size, n->get_datatype(), n->get_datatype_name(), n->get_array_size())) {
					return nullptr;
				}
				return n;
			}
			type = get_token_datatype(tk.type);
		}
		tk = _get_token();
		if (tk.type == TK_BRACKET_OPEN) {
			bool is_unknown_size = false;
			Error error = _parse_array_size(p_block, p_function_info, false, nullptr, &array_size, &is_unknown_size);
			if (error != OK) {
				return nullptr;
			}
			if (is_unknown_size) {
				array_size = p_array_size;
			}
			tk = _get_token();
		} else {
			_set_expected_error("[");
			return nullptr;
		}
		if (type != p_type || struct_name != p_struct_name || array_size != p_array_size) {
			String from;
			if (type == TYPE_STRUCT) {
				from += struct_name;