Fix rustc tests

Author: bjorn3

scripts/test_rustc_tests.sh

@@ -44,6 +44,7 @@ rm tests/incremental/hashes/statics.rs # same
 rm tests/ui/abi/mir/mir_codegen_calls_variadic.rs # requires float varargs
 rm tests/ui/abi/variadic-ffi.rs # requires callee side vararg support
 rm -r tests/run-make/c-link-to-rust-va-list-fn # requires callee side vararg support
+rm tests/ui/delegation/fn-header.rs
 
 # unsized locals
 rm -r tests/run-pass-valgrind/unsized-locals
@@ -120,6 +121,7 @@ rm -r tests/run-make/panic-abort-eh_frame # .eh_frame emitted with panic=abort
 # bugs in the test suite
 # ======================
 rm tests/ui/process/nofile-limit.rs # TODO some AArch64 linking issue
+rm tests/ui/attributes/unix_sigpipe/unix_sigpipe-inherit.rs # TODO some symbol not being found, but works fine when manually invoked
 
 rm tests/ui/stdio-is-blocking.rs # really slow with unoptimized libstd
 

src/abi/mod.rs

@@ -412,7 +412,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
                     Err(instance) => Some(instance),
                 }
             }
-            InstanceDef::DropGlue(_, None) => {
+            InstanceDef::DropGlue(_, None) | ty::InstanceDef::AsyncDropGlueCtorShim(_, None) => {
                 // empty drop glue - a nop.
                 let dest = target.expect("Non terminating drop_in_place_real???");
                 let ret_block = fx.get_block(dest);
@@ -597,7 +597,9 @@ pub(crate) fn codegen_drop<'tcx>(
     let ty = drop_place.layout().ty;
     let drop_instance = Instance::resolve_drop_in_place(fx.tcx, ty).polymorphize(fx.tcx);
 
-    if let ty::InstanceDef::DropGlue(_, None) = drop_instance.def {
+    if let ty::InstanceDef::DropGlue(_, None) | ty::InstanceDef::AsyncDropGlueCtorShim(_, None) =
+        drop_instance.def
+    {
         // we don't actually need to drop anything
     } else {
         match ty.kind() {