### 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 (keyword_completion_context & CF_FUNC_DECL_PARAM_SPEC) {
							keyword_completion_context ^= CF_FUNC_DECL_PARAM_SPEC;
						}
						if (keyword_completion_context & CF_PRECISION_MODIFIER) {
							keyword_completion_context ^= CF_PRECISION_MODIFIER;
						}
						if (_lookup_next(next)) {
							if (is_token_datatype(next.type)) {
								keyword_completion_context = CF_UNSPECIFIED;
							}
						}
#endif 
					}
					is_struct = false;
					if (shader->structs.has(tk.text)) {
						is_struct = true;
						param_struct_name = tk.text;
#ifdef DEBUG_ENABLED
						if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_STRUCT_FLAG) && used_structs.has(param_struct_name)) {
							used_structs[param_struct_name].used = true;
						}
#endif 
					}
					if (!is_struct && !is_token_datatype(tk.type)) {
						_set_error(RTR("Expected a valid data type for argument."));
						return ERR_PARSE_ERROR;
					}
					if (param_qualifier == ARGUMENT_QUALIFIER_OUT || param_qualifier == ARGUMENT_QUALIFIER_INOUT) {
						if (is_sampler_type(get_token_datatype(tk.type))) {