Support sometimes aliasing unbound arrays (T[]) as T[N]

[ArielG-NV]

Problem:
Currently we will not compile the following code (unless hacked around).

void myFunc(int unboundArray[])
{

}

void main()
{
    int notUnboundArray[16];
    myFunc(notUnboundArray);
}

Expected behavior:
GLSL allows void myFunc(int unboundArray[]) to work like __generic<let N : int> void myFunc(int unboundArray[N]).
Slang should do the same.