Upgrade Number constructor to ES6.

test/mjsunit/number-is.js

Index: test/mjsunit/number-is.js
diff --git a/test/mjsunit/number-is.js b/test/mjsunit/number-is.js
index 1589fc64ad44c8bae27d192a7b9f4cc42abf3a9c..53f08767869831be542dc3d62f314b1fbd6a98fa 100644
--- a/test/mjsunit/number-is.js
+++ b/test/mjsunit/number-is.js
@@ -25,11 +25,16 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Test Harmony Number.isFinite() and Number.isNaN() functions.
+// Test number predicates that Harmony adds to the Number constructor:
+// isFinite(), isNaN(), isInteger(), isSafeInteger().
 
 assertTrue(Number.isFinite(0));
 assertTrue(Number.isFinite(Number.MIN_VALUE));
 assertTrue(Number.isFinite(Number.MAX_VALUE));
+assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER));
+assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER - 13));
+assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER));
+assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER + 23));
 assertFalse(Number.isFinite(Number.NaN));
 assertFalse(Number.isFinite(Number.POSITIVE_INFINITY));
 assertFalse(Number.isFinite(Number.NEGATIVE_INFINITY));
@@ -45,9 +50,12 @@ assertFalse(Number.isFinite(undefined));
 assertFalse(Number.isNaN(0));
 assertFalse(Number.isNaN(Number.MIN_VALUE));
 assertFalse(Number.isNaN(Number.MAX_VALUE));
+assertFalse(Number.isNaN(Number.MIN_SAFE_INTEGER - 13));
+assertFalse(Number.isNaN(Number.MAX_SAFE_INTEGER + 23));
 assertTrue(Number.isNaN(Number.NaN));
 assertFalse(Number.isNaN(Number.POSITIVE_INFINITY));
 assertFalse(Number.isNaN(Number.NEGATIVE_INFINITY));
+assertFalse(Number.isNaN(Number.EPSILON));
 assertFalse(Number.isNaN(new Number(0)));
 assertFalse(Number.isNaN(1/0));
 assertFalse(Number.isNaN(-1/0));
@@ -56,3 +64,63 @@ assertFalse(Number.isNaN([]));
 assertFalse(Number.isNaN("s"));
 assertFalse(Number.isNaN(null));
 assertFalse(Number.isNaN(undefined));
+
+assertFalse(Number.isInteger({}));
+assertFalse(Number.isInteger([]));
+assertFalse(Number.isInteger("s"));
+assertFalse(Number.isInteger(null));
+assertFalse(Number.isInteger(undefined));
+assertFalse(Number.isInteger(new Number(2)));
+assertTrue(Number.isInteger(0));
+assertFalse(Number.isInteger(Number.MIN_VALUE));
+assertTrue(Number.isInteger(Number.MAX_VALUE));
+assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER));
+assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER - 13));
+assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER));
+assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER + 23));
+assertFalse(Number.isInteger(Number.NaN));
+assertFalse(Number.isInteger(Number.POSITIVE_INFINITY));
+assertFalse(Number.isInteger(Number.NEGATIVE_INFINITY));
+assertFalse(Number.isInteger(1/0));
+assertFalse(Number.isInteger(-1/0));
+assertFalse(Number.isInteger(Number.EPSILON));
+
+assertFalse(Number.isSafeInteger({}));
+assertFalse(Number.isSafeInteger([]));
+assertFalse(Number.isSafeInteger("s"));
+assertFalse(Number.isSafeInteger(null));
+assertFalse(Number.isSafeInteger(undefined));
+assertFalse(Number.isSafeInteger(new Number(2)));
+assertTrue(Number.isSafeInteger(0));
+assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER));
+assertFalse(Number.isSafeInteger(Number.MIN_SAFE_INTEGER - 13));
+assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER + 13));
+assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER));
+assertFalse(Number.isSafeInteger(Number.MAX_SAFE_INTEGER + 23));
+assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER - 23));
+assertFalse(Number.isSafeInteger(Number.MIN_VALUE));
+assertFalse(Number.isSafeInteger(Number.MAX_VALUE));
+assertFalse(Number.isSafeInteger(Number.NaN));
+assertFalse(Number.isSafeInteger(Number.POSITIVE_INFINITY));
+assertFalse(Number.isSafeInteger(Number.NEGATIVE_INFINITY));
+assertFalse(Number.isSafeInteger(1/0));
+assertFalse(Number.isSafeInteger(-1/0));
+assertFalse(Number.isSafeInteger(Number.EPSILON));
+
+var near_upper = Math.pow(2, 52);
+assertTrue(Number.isSafeInteger(near_upper));
+assertFalse(Number.isSafeInteger(2 * near_upper));
+assertTrue(Number.isSafeInteger(2 * near_upper - 1));
+assertTrue(Number.isSafeInteger(2 * near_upper - 2));
+assertFalse(Number.isSafeInteger(2 * near_upper + 1));
+assertFalse(Number.isSafeInteger(2 * near_upper + 2));
+assertFalse(Number.isSafeInteger(2 * near_upper + 7));
+
+var near_lower = -near_upper;
+assertTrue(Number.isSafeInteger(near_lower));
+assertFalse(Number.isSafeInteger(2 * near_lower));
+assertTrue(Number.isSafeInteger(2 * near_lower + 1));
+assertTrue(Number.isSafeInteger(2 * near_lower + 2));
+assertFalse(Number.isSafeInteger(2 * near_lower - 1));
+assertFalse(Number.isSafeInteger(2 * near_lower - 2));
+assertFalse(Number.isSafeInteger(2 * near_lower - 7));