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, 5 insertions, 3 deletions

diff --git a/spec/ruby/core/string/shared/each_line.rb b/spec/ruby/core/string/shared/each_line.rb
index 241a90eee3..843b123f57 100644
--- a/spec/ruby/core/string/shared/each_line.rb
+++ b/spec/ruby/core/string/shared/each_line.rb
@@ -40,10 +40,12 @@ describe :string_each_line, shared: true do
     b.should == ["foo\n", "🤡🤡🤡🤡🤡🤡🤡\n", "bar\n", "baz\n"]
   end
 
-  it "taints substrings that are passed to the block if self is tainted" do
-    "one\ntwo\r\nthree".taint.send(@method) { |s| s.tainted?.should == true }
+  ruby_version_is ''...'2.7' do
+    it "taints substrings that are passed to the block if self is tainted" do
+      "one\ntwo\r\nthree".taint.send(@method) { |s| s.tainted?.should == true }
 
-    "x.y.".send(@method, ".".taint) { |s| s.tainted?.should == false }
+      "x.y.".send(@method, ".".taint) { |s| s.tainted?.should == false }
+    end
   end
 
   it "passes self as a whole to the block if the separator is nil" do