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

lib/compiler/implementation/ssa/builder.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.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 27 matching lines @@
     if (name === '|=') return const SourceString('or');
     if (name === '&=') return const SourceString('and');
     if (name === '^=') return const SourceString('xor');
     if (name === '++') return const SourceString('add');
     if (name === '--') return const SourceString('sub');
     compiler.unimplemented('Unknown operator', node: op);
   }
 
   Element getStaticInterceptor(SourceString name, int parameters) {
     String mangledName = "builtin\$${name.slowToString()}\$${parameters}";
-    Element result = compiler.findHelper(new SourceString(mangledName));
-    return result;
+    return compiler.findHelper(new SourceString(mangledName));
   }
 
   Element getStaticGetInterceptor(SourceString name) {
     String mangledName = "builtin\$get\$${name.slowToString()}";
-    Element result = compiler.findHelper(new SourceString(mangledName));
-    return result;
+    return compiler.findHelper(new SourceString(mangledName));
   }
 
   Element getStaticSetInterceptor(SourceString name) {
     String mangledName = "builtin\$set\$${name.slowToString()}";
-    Element result = compiler.findHelper(new SourceString(mangledName));
-    return result;
+    return compiler.findHelper(new SourceString(mangledName));
   }
 
   Element getOperatorInterceptor(Operator op) {
     SourceString name = mapOperatorToMethodName(op);
-    Element result = compiler.findHelper(name);
-    return result;
+    return compiler.findHelper(name);
+  }
+
+  Element getBoolifiedVersionOf(Element interceptor) {
+    String boolifiedName = "${interceptor.name.slowToString()}B";
+    return compiler.findHelper(new SourceString(boolifiedName));
   }
 
   Element getPrefixOperatorInterceptor(Operator op) {
     String name = op.source.stringValue;
     if (name === '~') {
       return compiler.findHelper(const SourceString('not'));
     }
     if (name === '-') {
       return compiler.findHelper(const SourceString('neg'));
     }
@@ skipping 3044 matching lines @@
                                         false,
                                         <HInstruction>[target, input]));
     return builder.pop();
   }
 
   HInstruction result() {
     flushLiterals();
     return prefix;
   }
 }