Argument Type Checking

All:
I was hoping the following would give me an outright error

sub foo (Int $bar) {
    say $bar;
}
foo('hello');

I seem to recall, probably incorrectly, that one of the differences
with int, Int, and no type declaration at all is that one would
happily autoconvert for you, 1 would autoconvert but forget it ever
happened, and 1 would be an outright failure.

Ok - so could someone set me straight?
What should that code snippet do?  Would it do anything different if
Int had been int?

Cheers,
Joshua Gatcomb
a.k.a. L~R

• Argument Type Checking by Joshua Gatcomb
• Re: Argument Type Checking by Luke Palmer
• Re: Argument Type Checking by David Storrs
• Re: Argument Type Checking by Brent 'Dax' Royal-Gordon