Make pretty-expanded-hygiene a ui test

`normalize-stdout-test` removes the need for Make, and it can be updated
with `--bless` this way

src/test/run-make-fulldeps/pretty-expanded-hygiene/input.rs → src/test/ui/hygiene/unpretty-debug.rs

@@ -1,3 +1,9 @@
+// check-pass
+// compile-flags: -Zunpretty=expanded,hygiene
+
+// Don't break whenever Symbol numbering changes
+// normalize-stdout-test "\d+#" -> "0#"
+
 // minimal junk
 #![feature(no_core)]
 #![no_core]

src/test/run-make-fulldeps/pretty-expanded-hygiene/input.pp.rs → src/test/ui/hygiene/unpretty-debug.stdout

@@ -1,3 +1,9 @@
+// check-pass
+// compile-flags: -Zunpretty=expanded,hygiene
+
+// Don't break whenever Symbol numbering changes
+// normalize-stdout-test "\d+#" -> "0#"
+
 // minimal junk
 #![feature /* 0#0 */(no_core)]
 #![no_core /* 0#0 */]