### Godot version

4.0.2.stable

### System information

Windows 10

### Issue description

Engine keeps spamming me this
![изображение](https://user-images.githubusercontent.com/89089095/232018878-1584ed55-5867-4883-9519-67b82ef93813.png)


### Steps to reproduce

No steps, issue happens from time to time absolutely randomly

### Minimal reproduction project

N/A
push_error(R"(Expected expression as key for dictionary pattern.)");
					}
					if (match(GDScriptTokenizer::Token::COLON)) {
						
						PatternNode *sub_pattern = parse_match_pattern(p_root_pattern != nullptr ? p_root_pattern : pattern);
						if (sub_pattern == nullptr) {
							continue;
						}
						if (pattern->rest_used) {
							push_error(R"(The ".." pattern must be the last element in the pattern dictionary.)");
						} else if (sub_pattern->pattern_type == PatternNode::PT_REST) {
							push_error(R"(The ".." pattern cannot be used as a value.)");
						} else {
							pattern->dictionary.push_back({ key, sub_pattern });
						}
					} else {
						
						pattern->dictionary.push_back({ key, nullptr });
					}
				}
			} while (match(GDScriptTokenizer::Token::COMMA));
			consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected "}" to close the dictionary pattern.)");
			break;
		}
		default: {
			
			ExpressionNode *expression = parse_expression(false);
			if (expression == nullptr) {
				push_error(R"(Expected expression for match pattern.)");
				return nullptr;