### Godot version

4.0.3

### System information

Win7

### Issue description

![image](https://github.com/godotengine/godot/assets/28286958/abec9d3c-e078-424c-9430-d9fe8897aad6)


### Steps to reproduce

1. Create shader
2. Add uint with hex, e.g. 0xffffu

### Minimal reproduction project

N/A
} break;
							default:
								error = true;
								break;
						}
						tk = _get_token();
#ifdef DEBUG_ENABLED
						if (keyword_completion_context & CF_CONST_KEYWORD) {
							keyword_completion_context ^= CF_CONST_KEYWORD;
						}
						if (keyword_completion_context & CF_FUNC_DECL_PARAM_SPEC) {
							keyword_completion_context ^= CF_FUNC_DECL_PARAM_SPEC;
						}
						if (_lookup_next(next)) {
							if (is_token_precision(next.type)) {
								keyword_completion_context = CF_FUNC_DECL_PARAM_TYPE;
							} else if (is_token_datatype(next.type)) {
								keyword_completion_context = CF_PRECISION_MODIFIER;
							}
						}
#endif 
						if (error) {
							return ERR_PARSE_ERROR;
						}
					}
					DataType param_type;
					StringName param_name;
					StringName param_struct_name;
					DataPrecision param_precision = PRECISION_DEFAULT;
					int arg_array_size = 0;