Deprecate taint/trust and related methods, and make the methods no-ops

This removes the related tests, and puts the related specs behind
version guards.  This affects all code in lib, including some
libraries that may want to support older versions of Ruby.

1 files changed, 10 insertions, 8 deletions

diff --git a/spec/ruby/core/string/chop_spec.rb b/spec/ruby/core/string/chop_spec.rb
index 35a5766b2f..9e893c3bea 100644
--- a/spec/ruby/core/string/chop_spec.rb
+++ b/spec/ruby/core/string/chop_spec.rb
@@ -49,14 +49,16 @@ describe "String#chop" do
     s.chop.should_not equal(s)
   end
 
-  it "taints result when self is tainted" do
-    "hello".taint.chop.tainted?.should == true
-    "".taint.chop.tainted?.should == true
-  end
-
-  it "untrusts result when self is untrusted" do
-    "hello".untrust.chop.untrusted?.should == true
-    "".untrust.chop.untrusted?.should == true
+  ruby_version_is ''...'2.7' do
+    it "taints result when self is tainted" do
+      "hello".taint.chop.tainted?.should == true
+      "".taint.chop.tainted?.should == true
+    end
+
+    it "untrusts result when self is untrusted" do
+      "hello".untrust.chop.untrusted?.should == true
+      "".untrust.chop.untrusted?.should == true
+    end
   end
 
   it "returns subclass instances when called on a subclass" do