Removed as many "```ignore" as possible.

Replaced by adding extra imports, adding hidden code (`# ...`), modifying
examples to be runnable (sorry Homura), specifying non-Rust code, and
converting to should_panic, no_run, or compile_fail.

Remaining "```ignore"s received an explanation why they are being ignored.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/libstd/sys/windows/ext/fs.rs b/src/libstd/sys/windows/ext/fs.rs
index 2d00cb38ec4..67348a00494 100644
--- a/src/libstd/sys/windows/ext/fs.rs
+++ b/src/libstd/sys/windows/ext/fs.rs
@@ -169,8 +169,10 @@ pub trait OpenOptionsExt {
     ///
     /// # Examples
     ///
-    /// ```ignore
+    /// ```no_run
+    /// # #[cfg(for_demonstration_only)]
     /// extern crate winapi;
+    /// # mod winapi { pub const FILE_FLAG_DELETE_ON_CLOSE: u32 = 0x04000000; }
     ///
     /// use std::fs::OpenOptions;
     /// use std::os::windows::prelude::*;
@@ -204,8 +206,10 @@ pub trait OpenOptionsExt {
     ///
     /// # Examples
     ///
-    /// ```ignore
+    /// ```no_run
+    /// # #[cfg(for_demonstration_only)]
     /// extern crate winapi;
+    /// # mod winapi { pub const FILE_ATTRIBUTE_HIDDEN: u32 = 2; }
     ///
     /// use std::fs::OpenOptions;
     /// use std::os::windows::prelude::*;