Auto merge of #139336 - matthiaskrgr:rollup-zsi8pgf, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #138017 (Tighten up assignment operator representations.)
 - #138462 (Dedup `&mut *` reborrow suggestion in loops)
 - #138610 (impl !PartialOrd for HirId)
 - #138767 (Allow boolean literals in `check-cfg`)
 - #139068 (io: Avoid marking some bytes as uninit)
 - #139255 (Remove unused variables generated in merged doctests)
 - #139270 (Add a mailmap entry for myself)
 - #139303 (Put Noratrieb on vacation)
 - #139312 (add Marco Ieni to mailmap)

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

1 files changed, 8 insertions, 0 deletions

diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs
index 3f87b1a547b..33b4a48b28d 100644
--- a/compiler/rustc_interface/src/interface.rs
+++ b/compiler/rustc_interface/src/interface.rs
@@ -204,6 +204,14 @@ pub(crate) fn parse_check_cfg(dcx: DiagCtxtHandle<'_>, specs: Vec<String>) -> Ch
                     error!("`cfg()` names cannot be after values");
                 }
                 names.push(ident);
+            } else if let Some(boolean) = arg.boolean_literal() {
+                if values_specified {
+                    error!("`cfg()` names cannot be after values");
+                }
+                names.push(rustc_span::Ident::new(
+                    if boolean { rustc_span::kw::True } else { rustc_span::kw::False },
+                    arg.span(),
+                ));
             } else if arg.has_name(sym::any)
                 && let Some(args) = arg.meta_item_list()
             {