move ftype to File

Author: sampersand

core/file.rbs

@@ -810,6 +810,10 @@
 # *   #truncate: Truncates `self` to the given size.
 #
 class File < IO
+  # The string that `File.ftype` and `File::Stat#ftype` return
+  type ftype = 'file' | 'directory' | 'characterSpecial' | 'blockSpecial'
+              | 'fifo' | 'link' | 'socket' | 'unknown'
+
   # <!-- rdoc-file=file.c -->
   # platform specific alternative separator
   #

core/file_stat.rbs

@@ -9,10 +9,6 @@
 class File::Stat
   include Comparable
 
-  # The string that `File::Stat#ftype` returns
-  type ftype = 'file' | 'directory' | 'characterSpecial' | 'blockSpecial'
-                  | 'fifo' | 'link' | 'socket' | 'unknown'
-
   # <!--
   #   rdoc-file=file.c
   #   - File::Stat.new(file_name)  -> stat
@@ -230,7 +226,7 @@ class File::Stat
   #
   #     File.stat("/dev/tty").ftype   #=> "characterSpecial"
   #
-  def ftype: () -> ftype
+  def ftype: () -> File::ftype
 
   # <!--
   #   rdoc-file=file.c

test/stdlib/File_Stat_test.rb

@@ -95,7 +95,7 @@ def test_file?
   end
 
   def test_ftype
-    assert_send_type "() -> File::Stat::ftype",
+    assert_send_type "() -> File::ftype",
                       File::Stat.new(File.expand_path(__FILE__)), :ftype
   end