Auto merge of #115894 - matthiaskrgr:rollup-pe5efh4, r=matthiaskrgr

Rollup of 3 pull requests

Successful merges:

 - #115860 (Enable varargs support for AAPCS calling convention)
 - #115867 (coverage: Simplify internal representation of debug types)
 - #115885 (don't globally ignore rustc-ice files)

Failed merges:

 - #115873 (Make `TyKind::Adt`'s `Debug` impl be more pretty)
 - #115884 (make ty::Const debug printing less verbose)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

.gitignore

@@ -58,7 +58,6 @@ build/
 \#*
 \#*\#
 .#*
-rustc-ice-*.txt
 
 ## Tags
 tags

compiler/rustc_hir_analysis/src/lib.rs

@@ -117,7 +117,7 @@ use rustc_hir::def::DefKind;
 fluent_messages! { "../messages.ftl" }
 
 fn require_c_abi_if_c_variadic(tcx: TyCtxt<'_>, decl: &hir::FnDecl<'_>, abi: Abi, span: Span) {
-    const CONVENTIONS_UNSTABLE: &str = "`C`, `cdecl`, `win64`, `sysv64` or `efiapi`";
+    const CONVENTIONS_UNSTABLE: &str = "`C`, `cdecl`, `aapcs`, `win64`, `sysv64` or `efiapi`";
     const CONVENTIONS_STABLE: &str = "`C` or `cdecl`";
     const UNSTABLE_EXPLAIN: &str =
         "using calling conventions other than `C` or `cdecl` for varargs functions is unstable";