[asm] Fix lots of invalid asm.js tests

test/mjsunit/asm/float64array-outofbounds.js

Index: test/mjsunit/asm/float64array-outofbounds.js
diff --git a/test/mjsunit/asm/float64array-outofbounds.js b/test/mjsunit/asm/float64array-outofbounds.js
index 106d8e4821c3041b0c44d93c44df11dc684a778d..049421c596e5b04ded83ef2d46fb9ca1b8f491c1 100644
--- a/test/mjsunit/asm/float64array-outofbounds.js
+++ b/test/mjsunit/asm/float64array-outofbounds.js
@@ -7,8 +7,7 @@ function Module(stdlib, foreign, heap) {
   var MEM64 = new stdlib.Float64Array(heap);
   function load(i) {
     i = i|0;
-    i = +MEM64[i >> 3];
-    return i;
+    return +MEM64[i >> 3];
   }
   function store(i, v) {
     i = i|0;