### Godot version

v4.0.beta.custom_build [1d14c054a]

### System information

Kubuntu 22.10

### Issue description

Regression in master (in beta 10 the following script works correctly).

### Steps to reproduce

```gdscript
@tool
extends EditorScript

func wait(time: float) -> void:
    await get_editor_interface().get_tree().create_timer(time).timeout

func _run() -> void:
    reference()
    # Error: Cannot get return value of call to "wait()" because it returns "void".
    await wait(1.0)
    print("Test")
    unreference()
```

### Minimal reproduction project

N/A
append_opcode(GDScriptFunction::OPCODE_JUMP); 
	int else_jmp_addr = opcodes.size();
	append(0); 
	patch_jump(if_jmp_addrs.back()->get());
	if_jmp_addrs.pop_back();
	if_jmp_addrs.push_back(else_jmp_addr);
}
void GDScriptByteCodeGenerator::write_endif() {
	patch_jump(if_jmp_addrs.back()->get());
	if_jmp_addrs.pop_back();
}
void GDScriptByteCodeGenerator::write_jump_if_shared(const Address &p_value) {
	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_SHARED);
	append(p_value);
	if_jmp_addrs.push_back(opcodes.size());
	append(0); 
}
void GDScriptByteCodeGenerator::write_end_jump_if_shared() {
	patch_jump(if_jmp_addrs.back()->get());
	if_jmp_addrs.pop_back();
}
void GDScriptByteCodeGenerator::start_for(const GDScriptDataType &p_iterator_type, const GDScriptDataType &p_list_type) {
	Address counter(Address::LOCAL_VARIABLE, add_local("@counter_pos", p_iterator_type), p_iterator_type);
	Address container(Address::LOCAL_VARIABLE, add_local("@container_pos", p_list_type), p_list_type);
	
	for_counter_variables.push_back(counter);
	for_container_variables.push_back(container);
}
void GDScriptByteCodeGenerator::write_for_assignment(const Address &p_variable, const Address &p_list) {