Get rid of minified tests.

test/core_matchers_test.dart

Index: test/core_matchers_test.dart
diff --git a/test/core_matchers_test.dart b/test/core_matchers_test.dart
index 3213455472331ae9861530ce0503e2c93a5f36d7..5d8a194177339ed5432aa02b58e8d470d56db48b 100644
--- a/test/core_matchers_test.dart
+++ b/test/core_matchers_test.dart
@@ -187,4 +187,16 @@ void main() {
       shouldPass('cow', predicate((x) => x is String, "an instance of String"));
     });
   });
+
+  test("Feature Matcher", () {
+    var w = new Widget();
+    w.price = 10;
+    shouldPass(w, new HasPrice(10));
+    shouldPass(w, new HasPrice(greaterThan(0)));
+    shouldFail(w, new HasPrice(greaterThan(10)),
+        "Expected: Widget with a price that is a value greater than <10> "
+        "Actual: <Instance of 'Widget'> "
+        "Which: has price with value <10> which is not "
+        "a value greater than <10>");
+  });
 }