### Godot version

4.0.rc1

### System information

windows 10

### Issue description

When assigning a lambda to a variable right after an if statement, the parser seems to understand that a ternary expression is happening when in fact it is not.

![image](https://user-images.githubusercontent.com/5783414/218691792-a27619cd-f17c-4d1e-9121-197c22aeec09.png)

### Steps to reproduce

Put the code bellow on a script on an empty project
```gdscript
func test():
	var v
	if true: v = (func(): test())
	if true: v = (func(): test())
	if true: v = (func(): test())

	if true: v = func(): test()
	if true: v = func(): test()
```

### Minimal reproduction project

N/A
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Expected flag name.)", i + 1), p_annotation->arguments[i]);
				return false;
			}
			if (t.size() == 2) {
				if (t[1].is_empty()) {
					push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Expected flag value.)", i + 1), p_annotation->arguments[i]);
					return false;
				}
				if (!t[1].is_valid_int()) {
					push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": The flag value must be a valid integer.)", i + 1), p_annotation->arguments[i]);
					return false;
				}
				int64_t value = t[1].to_int();
				if (value < 1 || value >= (1LL << max_flags)) {
					push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": The flag value must be at least 1 and at most 2 ** %d - 1.)", i + 1, max_flags), p_annotation->arguments[i]);
					return false;
				}
			} else if (i >= max_flags) {
				push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Starting from argument %d, the flag value must be specified explicitly.)", i + 1, max_flags + 1), p_annotation->arguments[i]);
				return false;
			}
		}
		if (i > 0) {
			hint_string += ",";
		}
		hint_string += arg_string;
	}
	variable->export_info.hint_string = hint_string;
	
	DataType export_type = variable->get_datatype();