Fix normalization of custom_ice_message test.

tests/ui-internal/custom_ice_message.rs

@@ -1,8 +1,9 @@
 // rustc-env:RUST_BACKTRACE=0
 // normalize-stderr-test: "Clippy version: .*" -> "Clippy version: foo"
-// normalize-stderr-test: "internal_lints.rs:\d*:\d*" -> "internal_lints.rs"
+// normalize-stderr-test: "produce_ice.rs:\d*:\d*" -> "produce_ice.rs"
 // normalize-stderr-test: "', .*clippy_lints" -> "', clippy_lints"
 // normalize-stderr-test: "'rustc'" -> "'<unnamed>'"
+// normalize-stderr-test: "(?ms)query stack during panic:\n.*end of query stack\n" -> ""
 
 #![deny(clippy::internal)]
 #![allow(clippy::missing_clippy_version_attribute)]

tests/ui-internal/custom_ice_message.stderr

@@ -1,4 +1,4 @@
-thread '<unnamed>' panicked at 'Would you like some help with that?', clippy_lints/src/utils/internal_lints/produce_ice.rs:28:9
+thread '<unnamed>' panicked at 'Would you like some help with that?', clippy_lints/src/utils/internal_lints/produce_ice.rs
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 error: internal compiler error: unexpected panic
@@ -9,5 +9,3 @@ note: we would appreciate a bug report: https://github.com/rust-lang/rust-clippy
 
 note: Clippy version: foo
 
-query stack during panic:
-end of query stack