Update to ruby/spec@4bb0f25

* Specs added by TruffleRuby.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/core/time/comparison_spec.rb

@@ -45,6 +45,16 @@ describe "Time#<=>" do
     (Time.at(100, 0) <=> Time.at(100, Rational(1,1000))).should == -1
   end
 
+  it "returns nil when compared to an Integer because Time does not respond to #coerce" do
+    time = Time.at(1)
+    time.respond_to?(:coerce).should == false
+    time.should_receive(:respond_to?).exactly(2).and_return(false)
+    -> {
+      (time <=> 2).should == nil
+      (2 <=> time).should == nil
+    }.should_not complain
+  end
+
   describe "given a non-Time argument" do
     it "returns nil if argument <=> self returns nil" do
       t = Time.now