Rollup merge of #106164 - compiler-errors:check-region-tweak, r=oli-obk

Move `check_region_obligations_and_report_errors` to `TypeErrCtxt`

Makes sense for this function to live with its sibling `resolve_regions_and_report_errors`, around which it's basically just a wrapper.

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -116,7 +116,9 @@ pub(super) fn enter_wf_checking_ctxt<'tcx, F>(
     let outlives_environment =
         OutlivesEnvironment::with_bounds(param_env, Some(infcx), implied_bounds);
 
-    let _ = infcx.check_region_obligations_and_report_errors(body_def_id, &outlives_environment);
+    let _ = infcx
+        .err_ctxt()
+        .check_region_obligations_and_report_errors(body_def_id, &outlives_environment);
 }
 
 fn check_well_formed(tcx: TyCtxt<'_>, def_id: hir::OwnerId) {