Introduce IO.new(..., path:) and promote File#path to IO#path. …

…(#6867)

core/file/shared/path.rb

@@ -78,13 +78,15 @@
         rm_r @dir
       end
 
-      it "raises IOError if file was opened with File::TMPFILE" do
-        begin
-          File.open(@dir, File::RDWR | File::TMPFILE) do |f|
-            -> { f.send(@method) }.should raise_error(IOError)
+      ruby_version_is ""..."3.1" do
+        it "raises IOError if file was opened with File::TMPFILE" do
+          begin
+            File.open(@dir, File::RDWR | File::TMPFILE) do |f|
+              -> { f.send(@method) }.should raise_error(IOError)
+            end
+          rescue Errno::EOPNOTSUPP, Errno::EINVAL, Errno::EISDIR
+            skip "no support from the filesystem"
           end
-        rescue Errno::EOPNOTSUPP, Errno::EINVAL, Errno::EISDIR
-          skip "no support from the filesystem"
         end
       end
     end

core/io/path_spec.rb

@@ -0,0 +1,11 @@
+require_relative '../../spec_helper'
+
+describe "IO#path" do
+  ruby_version_is "3.2" do
+    it "returns the path of the file associated with the IO object" do
+      File.open(tmp("io_path.txt"), "w") do |file|
+        IO.new(file.fileno, path: file.path, autoclose: false).path.should == file.path
+      end
+    end
+  end
+end