Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #121619 (Experimental feature postfix match)
 - #122370 (Gracefully handle `AnonConst` in `diagnostic_hir_wf_check()`)
 - #122537 (interpret/allocation: fix aliasing issue in interpreter and refactor getters a bit)
 - #122542 (coverage: Clean up marker statements that aren't needed later)
 - #122800 (Add `NonNull::<[T]>::is_empty`.)
 - #122820 (Stop using `<DefId as Ord>` in various diagnostic situations)
 - #122847 (Suggest `RUST_MIN_STACK` workaround on overflow)
 - #122855 (Fix Itanium mangling usizes)
 - #122863 (add more ice tests )

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

1 files changed, 22 insertions, 0 deletions

diff --git a/src/doc/unstable-book/src/language-features/postfix-match.md b/src/doc/unstable-book/src/language-features/postfix-match.md
new file mode 100644
index 00000000000..cd6b6a7442c
--- /dev/null
+++ b/src/doc/unstable-book/src/language-features/postfix-match.md
@@ -0,0 +1,22 @@
+# `postfix-match`
+
+`postfix-match` adds the feature for matching upon values postfix
+the expressions that generate the values.
+
+```rust,edition2021
+#![feature(postfix_match)]
+
+enum Foo {
+    Bar,
+    Baz
+}
+
+fn get_foo() -> Foo {
+    Foo::Bar
+}
+
+get_foo().match {
+    Foo::Bar => {},
+    Foo::Baz => panic!(),
+}
+```