Move some rustdoc-ui tests to subdirectories

tests/rustdoc-ui/doctest/check-attr-test.rs

@@ -0,0 +1,31 @@
+// compile-flags:--test
+
+#![deny(rustdoc::invalid_codeblock_attributes)]
+
+/// foo
+///
+/// ```compile-fail,compilefail,comPile_fail
+/// boo
+/// ```
+pub fn foo() {}
+
+/// bar
+///
+/// ```should-panic,shouldpanic,shOuld_panic
+/// boo
+/// ```
+pub fn bar() {}
+
+/// foobar
+///
+/// ```no-run,norun,nO_run
+/// boo
+/// ```
+pub fn foobar() {}
+
+/// b
+///
+/// ```test-harness,testharness,tesT_harness
+/// boo
+/// ```
+pub fn b() {}