[asm] Fix lots of invalid asm.js tests

test/mjsunit/asm/do-while-false.js

Index: test/mjsunit/asm/do-while-false.js
diff --git a/test/mjsunit/asm/do-while-false.js b/test/mjsunit/asm/do-while-false.js
index ba906a0ab395dceb42c485b02900374ec86c3e44..e4cf375b0127676e8c83295c01a00a835ccd4fbb 100644
--- a/test/mjsunit/asm/do-while-false.js
+++ b/test/mjsunit/asm/do-while-false.js
@@ -41,11 +41,11 @@ function Module() {
   function d6(a) {
     a = a | 0;
     do {
-      if (a == 0) return 120;
-      if (a == 1) break;
-      if (a == 2) return 122;
-      if (a == 3) continue;
-      if (a == 4) return 124;
+      if ((a | 0) == 0) return 120;
+      if ((a | 0) == 1) break;
+      if ((a | 0) == 2) return 122;
+      if ((a | 0) == 3) continue;
+      if ((a | 0) == 4) return 124;
     } while(false);
     return 125;
   }