Fix test that can fail for small denormals.

test/mjsunit/math-sqrt.js

Index: test/mjsunit/math-sqrt.js
diff --git a/test/mjsunit/math-sqrt.js b/test/mjsunit/math-sqrt.js
index 06250a6b5b1d8c0e2f9b1dafa79e87ff763ded69..43fbf6b2dc8bccc3b03b680824631f6d15a83e50 100644
--- a/test/mjsunit/math-sqrt.js
+++ b/test/mjsunit/math-sqrt.js
@@ -30,7 +30,7 @@
 function test(expected_sqrt, value) {
   assertEquals(expected_sqrt, Math.sqrt(value));
   if (isFinite(value)) {
-    if ((1 / value) == -Infinity) {
+    if (value === 0 && (1 / value) == -Infinity) {
       // Math.pow(-0, 0.5) must be zero, but Math.sqrt(-0) is -0.
       expected_sqrt = 0;
     }