Avoid "=== true" inside code by calling a function that does this for us.

lib/compiler/implementation/lib/js_helper.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #library('js_helper');
 
 #import('coreimpl.dart');
 
 #source('constant_map.dart');
 #source('native_helper.dart');
@@ skipping 78 matching lines @@
 tdiv(var a, var b) {
   if (checkNumbers(a, b)) {
     return (a / b).truncate();
   }
   return UNINTERCEPTED(a ~/ b);
 }
 
 eq(var a, var b) {
   if (JS('bool', @'typeof # === "object"', a)) {
     if (JS_HAS_EQUALS(a)) {
-      return UNINTERCEPTED(a == b) === true;
+      return UNINTERCEPTED(a == b);
     } else {
       return JS('bool', @'# === #', a, b);
     }
   }
   // TODO(lrn): is NaN === NaN ? Is -0.0 === 0.0 ?
   return JS('bool', @'# === #', a, b);
 }
 
+bool eqB(var a, var b) => eq(a, b) === true;
+
 eqq(var a, var b) {
   return JS('bool', @'# === #', a, b);
 }
 
 eqNull(var a) {
   if (JS('bool', @'typeof # === "object"', a)) {
     if (JS_HAS_EQUALS(a)) {
-      return UNINTERCEPTED(a == null) === true;
+      return UNINTERCEPTED(a == null);
     } else {
       return false;
     }
   } else {
     return JS('bool', @'typeof # === "undefined"', a);
   }
 }
 
+bool eqNullB(var a) => eqNull(a) === true;
+
 gt(var a, var b) {
   if (checkNumbers(a, b)) {
     return JS('bool', @'# > #', a, b);
   }
   return UNINTERCEPTED(a > b);
 }
 
+bool gtB(var a, var b) => gt(a, b) === true;
+
 ge(var a, var b) {
   if (checkNumbers(a, b)) {
     return JS('bool', @'# >= #', a, b);
   }
   return UNINTERCEPTED(a >= b);
 }
 
+bool geB(var a, var b) => ge(a, b) === true;
+
 lt(var a, var b) {
   if (checkNumbers(a, b)) {
     return JS('bool', @'# < #', a, b);
   }
   return UNINTERCEPTED(a < b);
 }
 
+bool ltB(var a, var b) => lt(a, b) === true;
+
 le(var a, var b) {
   if (checkNumbers(a, b)) {
     return JS('bool', @'# <= #', a, b);
   }
   return UNINTERCEPTED(a <= b);
 }
 
+bool leB(var a, var b) => le(a, b) === true;
+
 shl(var a, var b) {
   // TODO(floitsch): inputs must be integers.
   if (checkNumbers(a, b)) {
     if (b < 0) throw new IllegalArgumentException(b);
     return JS('num', @'# << #', a, b);
   }
   return UNINTERCEPTED(a << b);
 }
 
 shr(var a, var b) {
@@ skipping 1205 matching lines @@
 /**
  * Represents the type of Null. The compiler treats this specially.
  */
 class Null {
   factory Null() {
     throw new UnsupportedOperationException('new Null()');
   }
 }
 
 builtin$get$toString(receiver) => () => builtin$toString$0(receiver);