Fix path in compiletest failure output.

Author: LegNeato

tests/ui/lang/control_flow/for_range_signed-broken.rs

@@ -1,4 +1,5 @@
 // build-fail
+// normalize-stderr-test "\S*/library/core/src/" -> "$$CORE_SRC/"
 
 // FIXME(eddyb) this should work, but `unchecked_add_unsigned` doesn't exist,
 // so range internals use `a.checked_add_unsigned(b).unwrap_unchecked()` instead,

tests/ui/lang/control_flow/for_range_signed-broken.stderr

@@ -1,5 +1,5 @@
 error: checked add is not supported yet
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/num/mod.rs:335:5
+   --> $CORE_SRC/num/mod.rs:335:5
     |
 335 | /     int_impl! {
 336 | |         Self = i32,
@@ -11,7 +11,7 @@ error: checked add is not supported yet
     | |_____^
     |
 note: used from within `<i32>::overflowing_add`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/num/mod.rs:335:5
+   --> $CORE_SRC/num/mod.rs:335:5
     |
 335 | /     int_impl! {
 336 | |         Self = i32,
@@ -22,7 +22,7 @@ note: used from within `<i32>::overflowing_add`
 354 | |     }
     | |_____^
 note: called by `<i32>::overflowing_add_unsigned`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/num/mod.rs:335:5
+   --> $CORE_SRC/num/mod.rs:335:5
     |
 335 | /     int_impl! {
 336 | |         Self = i32,
@@ -33,7 +33,7 @@ note: called by `<i32>::overflowing_add_unsigned`
 354 | |     }
     | |_____^
 note: called by `<i32>::checked_add_unsigned`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/num/mod.rs:335:5
+   --> $CORE_SRC/num/mod.rs:335:5
     |
 335 | /     int_impl! {
 336 | |         Self = i32,
@@ -44,32 +44,32 @@ note: called by `<i32>::checked_add_unsigned`
 354 | |     }
     | |_____^
 note: called by `<i32 as core::iter::range::Step>::forward_unchecked`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/iter/range.rs:423:1
+   --> $CORE_SRC/iter/range.rs:423:1
     |
 423 | / step_integer_impls! {
 424 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [usize isize];
 425 | |     wider than usize: [u64 i64], [u128 i128];
 426 | | }
     | |_^
 note: called by `<core::ops::range::Range<i32> as core::iter::range::RangeIteratorImpl>::spec_next`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/iter/range.rs:756:35
+   --> $CORE_SRC/iter/range.rs:756:35
     |
 756 |             self.start = unsafe { Step::forward_unchecked(old, 1) };
     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 note: called by `<core::ops::range::Range<i32> as core::iter::traits::iterator::Iterator>::next`
-   --> /home/eddy/.rustup/toolchains/nightly-2024-04-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/iter/range.rs:844:9
+   --> $CORE_SRC/iter/range.rs:844:9
     |
 844 |         self.spec_next()
     |         ^^^^^^^^^^^^^^^^
 note: called by `for_range_signed_broken::main`
-   --> $DIR/for_range_signed-broken.rs:11:14
+   --> $DIR/for_range_signed-broken.rs:12:14
     |
-11  |     for _ in 0..i {}
+12  |     for _ in 0..i {}
     |              ^^^^
 note: called by `main`
-   --> $DIR/for_range_signed-broken.rs:10:8
+   --> $DIR/for_range_signed-broken.rs:11:8
     |
-10  | pub fn main(#[spirv(flat)] i: i32) {
+11  | pub fn main(#[spirv(flat)] i: i32) {
     |        ^^^^
 
 error: aborting due to 1 previous error