rustdoc: Replace no-pretty-expanded with pretty-expanded

Now that features must be declared expanded source often does not compile.
This adds 'pretty-expanded' to a bunch of test cases that still work.

src/test/run-pass/check-static-recursion-foreign.rs

@@ -12,6 +12,8 @@
 
 // aux-build:check_static_recursion_foreign_helper.rs
 
+// pretty-expanded FIXME #23616
+
 #![feature(custom_attribute, libc)]
 
 extern crate check_static_recursion_foreign_helper;