Match yielded args with == or ===.

Previously, this expectation failed:

  expect { |b| _yield_with_args(String, Fixnum, &b) }.to yield_with_args(String, Fixnum)

...because Class=== returns false when given itself.

lib/rspec/matchers/built_in/yield.rb

@@ -86,7 +86,7 @@ def args_match?
           unless match = all_args_match?
             @args_failure = "yielded with unexpected arguments" +
               "\nexpected: #{expected.inspect}" +
-              "\n     got: #{actual.inspect} (compared using ===)"
+              "\n     got: #{actual.inspect} (compared using === and ==)"
           end
 
           match
@@ -96,7 +96,7 @@ def all_args_match?
           return false if @expected.size != @actual.size
 
           @expected.zip(@actual).all? do |expected, actual|
-            expected === actual
+            expected === actual || actual == expected
           end
         end
       end

spec/rspec/matchers/yield_spec.rb

@@ -153,4 +153,20 @@ def _yield_with_args(*args)
       }.to fail_with(/expected given block to yield with arguments, but yielded with unexpected arguments/)
     end
   end
+
+  describe "expect {...}.to yield_with_args(String, Fixnum)" do
+    it "passes if the block yields objects of the given types" do
+      expect { |b| _yield_with_args("string", 15, &b) }.to yield_with_args(String, Fixnum)
+    end
+
+    it "passes if the block yields the given types" do
+      expect { |b| _yield_with_args(String, Fixnum, &b) }.to yield_with_args(String, Fixnum)
+    end
+
+    it "fails if the block yields objects of different types" do
+      expect {
+        expect { |b| _yield_with_args(15, "string", &b) }.to yield_with_args(String, Fixnum)
+      }.to fail_with(/expected given block to yield with arguments, but yielded with unexpected arguments/)
+    end
+  end
 end