Windows: fix FileType PartialEq implementation

Author: ChrisDenton

library/std/src/sys/fs/windows.rs

@@ -39,7 +39,7 @@ pub struct FileAttr {
     file_index: Option<u64>,
 }
 
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
+#[derive(Copy, Clone, Eq, Hash, Debug)]
 pub struct FileType {
     attributes: u32,
     reparse_tag: u32,
@@ -1140,6 +1140,12 @@ impl FileType {
     }
 }
 
+impl PartialEq for FileType {
+    fn eq(&self, other: &Self) -> bool {
+        self.is_symlink() == other.is_symlink() && self.is_directory() == other.is_directory()
+    }
+}
+
 impl DirBuilder {
     pub fn new() -> DirBuilder {
         DirBuilder