Rollup merge of rust-lang#77493 - hosseind88:ICEs_should_always_print_the_top_of_the_query_stack, r=oli-obk

ICEs should always print the top of the query stack

see rust-lang#76920

Author: Dylan-DPC

src/driver.rs

@@ -277,9 +277,9 @@ fn report_clippy_ice(info: &panic::PanicInfo<'_>, bug_report_url: &str) {
     // If backtraces are enabled, also print the query stack
     let backtrace = env::var_os("RUST_BACKTRACE").map_or(false, |x| &x != "0");
 
-    if backtrace {
-        TyCtxt::try_print_query_stack(&handler);
-    }
+    let num_frames = if backtrace { None } else { Some(2) };
+
+    TyCtxt::try_print_query_stack(&handler, num_frames);
 }
 
 fn toolchain_path(home: Option<String>, toolchain: Option<String>) -> Option<PathBuf> {

tests/ui/custom_ice_message.stderr

@@ -9,3 +9,5 @@ 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