Add more tests to mul-exhaustive for constant left/right parameters.

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 fb00d5ba8ab138ac6b8020387ede85c9a245fd92..45ec234db1cdcba769b3bd4ebead08ee739cebd0 100644
--- a/test/mjsunit/math-sqrt.js
+++ b/test/mjsunit/math-sqrt.js
@@ -29,7 +29,11 @@
 
 function test(expected_sqrt, value) {
   assertEquals(expected_sqrt, Math.sqrt(value));
-  if (isFinite(value)) { 
+  if (isFinite(value)) {
+    if ((1 / value) != -Infinity) {
+      // Math.pow(-0, 0.5) must be zero, but Math.sqrt(-0) is -0.
+      expected_sqrt = 0;
+    }
     assertEquals(expected_sqrt, Math.pow(value, 0.5));
   }
 }