update test

Author: liufengyun

tests/run-bootstrapped/i6710.scala

@@ -12,5 +12,12 @@ object Test {
     assert(!(f < 0.0))
     assert(!(d > 0.0))
     assert(!(d < 0.0))
+
+    // loop forever before the fix
+    var x = Double.NaN
+    while(x < 10.0) { x = x + 1; println(x) }
+    while(x > 10.0) { x = x + 1; println(x) }
+    do { x = x + 1; println(x) } while(x < 10.0)
+    do { x = x + 1; println(x) } while(x > 10.0)
   }
 }