"self" keyword

[Rick C. Hodgin]

How hard would it be to implement a "self" keyword extension which 
references the contextual function name wherein it was referenced?

int foo(int a)
{
    // recursion
    self(a + 1);
}
int food(int a)
{
    // recursion
    self(a + 1);
}

Obviously not a useful example, but demonstrates that to call each 
function it's in again that it can be done without knowing the function 
name.

Best regards,
Rick C. Hodgin