[wasm] asm.js: Work around parser converting !0 and !1 to boolean.

test/mjsunit/wasm/asm-wasm.js

Index: test/mjsunit/wasm/asm-wasm.js
diff --git a/test/mjsunit/wasm/asm-wasm.js b/test/mjsunit/wasm/asm-wasm.js
index 6aaea614fc07ab98dc914e037ae1f014f399314c..b1e73c1edabd1f0c38f5fffe899d1ebcdf9f9a75 100644
--- a/test/mjsunit/wasm/asm-wasm.js
+++ b/test/mjsunit/wasm/asm-wasm.js
@@ -1596,3 +1596,35 @@ function TestSingleFunctionModule() {
 }
 
 assertEquals(7, TestSingleFunctionModule()(3, 4));
+
+
+function TestNotZero() {
+  "use asm";
+  function caller() {
+    if (!0) {
+      return 44;
+    } else {
+      return 55;
+    }
+    return 0;
+  }
+  return {caller: caller};
+}
+
+assertWasm(44, TestNotZero);
+
+
+function TestNotOne() {
+  "use asm";
+  function caller() {
+    if (!1) {
+      return 44;
+    } else {
+      return 55;
+    }
+    return 0;
+  }
+  return {caller: caller};
+}
+
+assertWasm(55, TestNotOne);