Expand macro returns wrong text when top level declarative macro call is in scope

[piotmag769]

E.g.

pub macro inc {
    ($x:expr) => { $x + 1 };
}

crate::inc!(2);

#[test]<caret>
fn test() {
    inc!(0);
}

expands the inc!(0) without the context instead of #[test]. However

pub macro inc {
    ($x:expr) => { $x + 1 };
}


#[test]<caret>
fn test() {
    inc!(0);
}

crate::inc!(2);

gives incorrect result - part of the test expanded code is missing.

When crate::inc!(2); is removed - everything works as expected