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, 20 insertions, 12 deletions

diff --git a/spec/ruby/core/io/gets_spec.rb b/spec/ruby/core/io/gets_spec.rb
index 8f6ec0dfc7..39b2108476 100644
--- a/spec/ruby/core/io/gets_spec.rb
+++ b/spec/ruby/core/io/gets_spec.rb
@@ -38,9 +38,11 @@ describe "IO#gets" do
       IOSpecs.lines.each { |line| line.should == @io.gets }
     end
 
-    it "returns tainted strings" do
-      while line = @io.gets
-        line.tainted?.should == true
+    ruby_version_is ''...'2.7' do
+      it "returns tainted strings" do
+        while line = @io.gets
+          line.tainted?.should == true
+        end
       end
     end
 
@@ -62,9 +64,11 @@ describe "IO#gets" do
       @io.gets(nil).should == IOSpecs.lines.join("")
     end
 
-    it "returns tainted strings" do
-      while line = @io.gets(nil)
-        line.tainted?.should == true
+    ruby_version_is ''...'2.7' do
+      it "returns tainted strings" do
+        while line = @io.gets(nil)
+          line.tainted?.should == true
+        end
       end
     end
 
@@ -96,9 +100,11 @@ describe "IO#gets" do
       @io.gets.should == IOSpecs.lines[4]
     end
 
-    it "returns tainted strings" do
-      while line = @io.gets("")
-        line.tainted?.should == true
+    ruby_version_is ''...'2.7' do
+      it "returns tainted strings" do
+        while line = @io.gets("")
+          line.tainted?.should == true
+        end
       end
     end
 
@@ -120,9 +126,11 @@ describe "IO#gets" do
       @io.gets("la linea").should == "Voici la ligne une.\nQui \303\250 la linea"
     end
 
-    it "returns tainted strings" do
-      while line = @io.gets("la")
-        line.tainted?.should == true
+    ruby_version_is ''...'2.7' do
+      it "returns tainted strings" do
+        while line = @io.gets("la")
+          line.tainted?.should == true
+        end
       end
     end