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, 8 insertions, 6 deletions

diff --git a/spec/ruby/core/string/squeeze_spec.rb b/spec/ruby/core/string/squeeze_spec.rb
index bcc320bb5b..2e96684b9d 100644
--- a/spec/ruby/core/string/squeeze_spec.rb
+++ b/spec/ruby/core/string/squeeze_spec.rb
@@ -54,12 +54,14 @@ describe "String#squeeze" do
     -> { s.squeeze("^e-b") }.should raise_error(ArgumentError)
   end
 
-  it "taints the result when self is tainted" do
-    "hello".taint.squeeze("e").tainted?.should == true
-    "hello".taint.squeeze("a-z").tainted?.should == true
-
-    "hello".squeeze("e".taint).tainted?.should == false
-    "hello".squeeze("l".taint).tainted?.should == false
+  ruby_version_is ''...'2.7' do
+    it "taints the result when self is tainted" do
+      "hello".taint.squeeze("e").tainted?.should == true
+      "hello".taint.squeeze("a-z").tainted?.should == true
+
+      "hello".squeeze("e".taint).tainted?.should == false
+      "hello".squeeze("l".taint).tainted?.should == false
+    end
   end
 
   it "tries to convert each set arg to a string using to_str" do