Simplify intra-crate qualifiers.

The following is a weird pattern for a file within `rustc_middle`:
```
use rustc_middle::aaa;
use crate::bbb;
```
More sensible and standard would be this:
```
use crate::{aaa, bbb};
```
I.e. we generally prefer using `crate::` to using a crate's own name.
(Exceptions are things like in macros where `crate::` doesn't work
because the macro is used in multiple crates.)

This commit fixes a bunch of these weird qualifiers.

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs
index 14f871cbbdc..cbd60920bc5 100644
--- a/compiler/rustc_middle/src/query/erase.rs
+++ b/compiler/rustc_middle/src/query/erase.rs
@@ -101,9 +101,9 @@ impl<T> EraseType for Result<&'_ T, &'_ ty::layout::FnAbiError<'_>> {
     type Result = [u8; size_of::<Result<&'static (), &'static ty::layout::FnAbiError<'static>>>()];
 }
 
-impl<T> EraseType for Result<(&'_ T, rustc_middle::thir::ExprId), rustc_errors::ErrorGuaranteed> {
+impl<T> EraseType for Result<(&'_ T, crate::thir::ExprId), rustc_errors::ErrorGuaranteed> {
     type Result = [u8; size_of::<
-        Result<(&'static (), rustc_middle::thir::ExprId), rustc_errors::ErrorGuaranteed>,
+        Result<(&'static (), crate::thir::ExprId), rustc_errors::ErrorGuaranteed>,
     >()];
 }