https://git.ruby-lang.org/ruby.git/commit/?id=e82f5db789

From e82f5db7891f45ec45c073d7eddfbd6cdefe97a8 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sat, 26 Feb 2022 02:42:35 +0900
Subject: Deprecate the unintentional ability to parse `Symbol`

---
 spec/ruby/library/date/iso8601_spec.rb | 9 ---------
 spec/ruby/library/date/parse_spec.rb   | 2 +-
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/spec/ruby/library/date/iso8601_spec.rb b/spec/ruby/library/date/iso8601_spec.rb
index 2c698db514..a29652014e 100644
--- a/spec/ruby/library/date/iso8601_spec.rb
+++ b/spec/ruby/library/date/iso8601_spec.rb
@@ -17,20 +17,11 @@ describe "Date.iso8601" do https://github.com/ruby/ruby/blob/trunk/spec/ruby/library/date/iso8601_spec.rb#L17
     d.should == Date.civil(-4712, 1, 1)
   end
 
-  it "parses a Symbol into a Date object" do
-    d = Date.iso8601(:'2015-10-15')
-    d.should == Date.civil(2015, 10, 15)
-  end
-
   it "parses a StringSubclass into a Date object" do
     d = Date.iso8601(Class.new(String).new("-4712-01-01"))
     d.should == Date.civil(-4712, 1, 1)
   end
 
-  it "raises an ArgumentError when passed a Symbol without a valid Date" do
-    -> { Date.iso8601(:test) }.should raise_error(ArgumentError)
-  end
-
   it "raises a TypeError when passed an Object" do
     -> { Date.iso8601(Object.new) }.should raise_error(TypeError)
   end
diff --git a/spec/ruby/library/date/parse_spec.rb b/spec/ruby/library/date/parse_spec.rb
index ef72ba3f4e..bfbe86fbac 100644
--- a/spec/ruby/library/date/parse_spec.rb
+++ b/spec/ruby/library/date/parse_spec.rb
@@ -67,7 +67,7 @@ describe "Date#parse" do https://github.com/ruby/ruby/blob/trunk/spec/ruby/library/date/parse_spec.rb#L67
 
   it "raises a TypeError trying to parse non-String-like object" do
     -> { Date.parse(1) }.should raise_error(TypeError)
-    -> { Date.parse(:invalid) }.should raise_error(TypeError)
+    -> { Date.parse([]) }.should raise_error(TypeError)
   end
 
   it "coerces using to_str" do
-- 
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