[turbofan] Fix recognition of Uint32Div in simplified lowering.

test/mjsunit/asm/uint32div.js

Index: test/mjsunit/asm/uint32div.js
diff --git a/test/mjsunit/asm/uint32div.js b/test/mjsunit/asm/uint32div.js
index 54a2138786692ebf24e7e3e7d21cda2879e39952..dcbb73bfa9e45e16dbd9c8accf8de10e8b1193c4 100644
--- a/test/mjsunit/asm/uint32div.js
+++ b/test/mjsunit/asm/uint32div.js
@@ -22,8 +22,24 @@ function Uint32Div(divisor) {
 var divisors = [0, 1, 3, 4, 10, 42, 64, 100, 1024, 2147483647, 4294967295];
 for (var i in divisors) {
   var divisor = divisors[i];
-  var mod = Uint32Div(divisor);
+  var div = Uint32Div(divisor);
   for (var dividend = 0; dividend < 4294967296; dividend += 3999773) {
-    assertEquals((dividend / divisor) >>> 0, mod(dividend));
+    assertEquals((dividend / divisor) >>> 0, div(dividend));
+  }
+}
+
+var div = (function(stdlib, foreign, heap) {
+  "use asm";
+  function div(dividend, divisor) {
+    return (dividend >>> 0) / (divisor >>> 0) | 0;
+  }
+  return {div: div};
+})(stdlib, foreign, heap).div;
+
+for (var i in divisors) {
+  var divisor =  divisors[i];
+  for (var dividend = 0; dividend < 4294967296; dividend += 3999773) {
+    assertEquals((dividend >>> 0) / (divisor >>> 0) | 0,
+                 div(dividend, divisor));
   }
 }