Auto merge of rust-lang#137371 - matthiaskrgr:rollup-3qkdqar, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#128080 (Specify scope in `out_of_scope_macro_calls` lint)
 - rust-lang#135630 (add more `s390x` target features)
 - rust-lang#136089 (Reduce `Box::default` stack copies in debug mode)
 - rust-lang#137204 (Clarify MIR dialects and phases)
 - rust-lang#137299 (Simplify `Postorder` customization.)
 - rust-lang#137302 (Use a probe to avoid registering stray region obligations when re-checking drops in MIR typeck)
 - rust-lang#137305 (Tweaks in and around `rustc_middle`)
 - rust-lang#137313 (Some codegen_llvm cleanups)

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

Author: bors

compiler/rustc_borrowck/src/polonius/dump.rs

@@ -226,7 +226,7 @@ fn emit_polonius_mir<'tcx>(
         regioncx,
         closure_region_requirements,
         borrow_set,
-        pass_where.clone(),
+        pass_where,
         out,
     )?;
 

compiler/rustc_borrowck/src/type_check/liveness/trace.rs

@@ -613,9 +613,14 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> {
                 // types, so there's no guarantee that it succeeds. We also
                 // can't rely on the the `ErrorGuaranteed` from `fully_perform` here
                 // because it comes from delay_span_bug.
-                let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx);
-                let errors =
-                    match dropck_outlives::compute_dropck_outlives_with_errors(&ocx, op, span) {
+                //
+                // Do this inside of a probe because we don't particularly care (or want)
+                // any region side-effects of this operation in our infcx.
+                typeck.infcx.probe(|_| {
+                    let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx);
+                    let errors = match dropck_outlives::compute_dropck_outlives_with_errors(
+                        &ocx, op, span,
+                    ) {
                         Ok(_) => ocx.select_all_or_error(),
                         Err(e) => {
                             if e.is_empty() {
@@ -626,11 +631,12 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> {
                         }
                     };
 
-                if !errors.is_empty() {
-                    typeck.infcx.err_ctxt().report_fulfillment_errors(errors);
-                } else {
-                    span_bug!(span, "Rerunning drop data query produced no error.");
-                }
+                    if !errors.is_empty() {
+                        typeck.infcx.err_ctxt().report_fulfillment_errors(errors);
+                    } else {
+                        span_bug!(span, "Rerunning drop data query produced no error.");
+                    }
+                });
                 DropData { dropck_result: Default::default(), region_constraint_data: None }
             }
         }