Auto merge of #154916 - jhpratt:rollup-RkdDmtW, r=jhpratt

Rollup of 6 pull requests

Successful merges:

 - rust-lang/rust#154627 (Move `rustc_middle::mir::mono` to `rustc_middle::mono`)
 - rust-lang/rust#154729 (de-non_const some `Iterator` methods)
 - rust-lang/rust#154891 (implement `StructuralPartialEq` for `MaybeDangling`)
 - rust-lang/rust#154894 (Slightly refactor mplace<->ptr conversions)
 - rust-lang/rust#154751 (compiletest: Remove `rfail` support from incremental tests)
 - rust-lang/rust#154901 (Update books)

Author: bors

src/tests/compiletest.md

@@ -158,9 +158,9 @@ then runs the compiler for each revision, reusing the incremental results from p
 
 The revisions should start with:
 
-* `rpass` — the test should compile and run successfully
-* `rfail` — the test should compile successfully, but the executable should fail to run
 * `cfail` — the test should fail to compile
+* `cpass` — the test should compile successully
+* `rpass` — the test should compile and run successfully
 
 To make the revisions unique, you should add a suffix like `rpass1` and `rpass2`.