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, 4 deletions

diff --git a/spec/ruby/core/string/unpack/p_spec.rb b/spec/ruby/core/string/unpack/p_spec.rb
index a544bc29c1..3e187d674f 100644
--- a/spec/ruby/core/string/unpack/p_spec.rb
+++ b/spec/ruby/core/string/unpack/p_spec.rb
@@ -18,8 +18,10 @@ describe "String#unpack with format 'P'" do
     -> { packed.to_sym.to_s.unpack("P5") }.should raise_error(ArgumentError, /no associated pointer/)
   end
 
-  it "taints the unpacked string" do
-    ["hello"].pack("P").unpack("P5").first.tainted?.should be_true
+  ruby_version_is ''...'2.7' do
+    it "taints the unpacked string" do
+      ["hello"].pack("P").unpack("P5").first.tainted?.should be_true
+    end
   end
 
   it "reads as many characters as specified" do
@@ -46,7 +48,9 @@ describe "String#unpack with format 'p'" do
     -> { packed.to_sym.to_s.unpack("p") }.should raise_error(ArgumentError, /no associated pointer/)
   end
 
-  it "taints the unpacked string" do
-    ["hello"].pack("p").unpack("p").first.tainted?.should be_true
+  ruby_version_is ''...'2.7' do
+    it "taints the unpacked string" do
+      ["hello"].pack("p").unpack("p").first.tainted?.should be_true
+    end
   end
 end