[turbofan] CheckBounds cannot be used within asm.js.

test/mjsunit/regress/regress-crbug-661949.js

Index: test/mjsunit/regress/regress-crbug-661949.js
diff --git a/test/mjsunit/regress/regress-crbug-630923.js b/test/mjsunit/regress/regress-crbug-661949.js
similarity index 73%
copy from test/mjsunit/regress/regress-crbug-630923.js
copy to test/mjsunit/regress/regress-crbug-661949.js
index ff0d2dd05efbedec15a515545eac2184c36c59f3..e083cae349e7ea7986a5478a590da596e5759d42 100644
--- a/test/mjsunit/regress/regress-crbug-630923.js
+++ b/test/mjsunit/regress/regress-crbug-661949.js
@@ -4,13 +4,12 @@
 
 // Flags: --allow-natives-syntax
 
-var o = {};
-function bar(o) {
-  return 1 + (o.t ? 1 : 2);
-}
-function foo() {
-  bar(o);
-}
+var foo = (function() {
+  'use asm';
+  function foo() { ''[0]; }
+  return foo;
+})();
+
 foo();
 %OptimizeFunctionOnNextCall(foo);
 foo();