work on normalize-pathname

add two failing unit tests

core/io/backend/backend.factor

@@ -21,8 +21,6 @@ M: object normalize-directory ;
 
 HOOK: normalize-pathname io-backend ( str -- newstr )
 
-M: object normalize-pathname ;
-
 : set-io-backend ( io-backend -- )
     io-backend set-global init-io init-stdio ;
 

core/io/files/files-tests.factor

@@ -1,6 +1,7 @@
 IN: io.files.tests
-USING: tools.test io.files io threads kernel continuations io.encodings.ascii
-io.files.unique sequences strings accessors ;
+USING: tools.test io.files io threads kernel continuations
+io.encodings.ascii io.files.unique sequences strings accessors
+io.encodings.utf8 ;
 
 [ ] [ "blahblah" temp-file dup exists? [ delete-directory ] [ drop ] if ] unit-test
 [ ] [ "blahblah" temp-file make-directory ] unit-test
@@ -130,6 +131,18 @@ io.files.unique sequences strings accessors ;
 
 [ t ] [ cwd "misc" resource-path [ ] with-directory cwd = ] unit-test
 
+[ t ] [
+    temp-directory [ "hi" "test41" utf8 set-file-contents ] with-directory
+    temp-directory "test41" append-path utf8 file-contents "hi41" =
+] unit-test
+
+[ t ] [
+    temp-directory [
+        "test43" utf8 <file-writer> [ "hi43" write ] with-stream
+    ] with-directory
+    temp-directory "test43" append-path utf8 file-contents "hi43" =
+] unit-test
+
 [ ] [ "append-test" temp-file dup exists? [ delete-file ] [ drop ] if ] unit-test
 
 [ ] [ "append-test" temp-file ascii <file-appender> dispose ] unit-test

core/io/files/files.factor

@@ -272,6 +272,9 @@ DEFER: copy-tree-into
 
 : temp-file ( name -- path ) temp-directory prepend-path ;
 
+M: object normalize-pathname ( path -- path' )
+    current-directory get prepend-path ;
+
 ! Pathname presentations
 TUPLE: pathname string ;