fix Issue 11322 - ICE with -inline cgcs.c 221

[WalterBright]

https://d.puremagic.com/issues/show_bug.cgi?id=11322

[yebblies]

Same problem with

bool b;
uint i;

ref uint fun()
{
    if(b)
        return i;
    else
        return i;
}

void analyze()
{
    fun()+=1;
}

Are you sure this is the way to go to fix this?

[WalterBright]

Yah, let me think about it some more.

[9rnsr]

How about using Expression::toLvalue from inline.c?

[9rnsr]

I opened #2823 to show my idea.

[WalterBright]

#2823 is better