--trust-primitives: Remove bounds checks and receiver and argument type checks

pkg/compiler/lib/src/ssa/codegen.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.
 
 part of ssa;
 
 class SsaCodeGeneratorTask extends CompilerTask {
 
   final JavaScriptBackend backend;
 
@@ skipping 235 matching lines @@
 
   js.Node attachLocationRange(js.Node jsNode,
                               SourceFileLocation sourcePosition,
                               SourceFileLocation endSourcePosition) {
     return jsNode.withPosition(sourcePosition, endSourcePosition);
   }
 
   void preGenerateMethod(HGraph graph) {
     new SsaInstructionSelection(compiler).visitGraph(graph);
     new SsaTypeKnownRemover().visitGraph(graph);
+    new SsaTrustedCheckRemover(compiler).visitGraph(graph);
     new SsaInstructionMerger(generateAtUseSite, compiler).visitGraph(graph);
     new SsaConditionMerger(
         generateAtUseSite, controlFlowOperators).visitGraph(graph);
     SsaLiveIntervalBuilder intervalBuilder = new SsaLiveIntervalBuilder(
         compiler, generateAtUseSite, controlFlowOperators);
     intervalBuilder.visitGraph(graph);
     SsaVariableAllocator allocator = new SsaVariableAllocator(
         compiler,
         intervalBuilder.liveInstructions,
         intervalBuilder.liveIntervals,
@@ skipping 2457 matching lines @@
   js.PropertyAccess accessHelper(String name) {
     Element helper = backend.findHelper(name);
     if (helper == null) {
       // For mocked-up tests.
       return js.js('(void 0).$name');
     }
     registry.registerStaticUse(helper);
     return backend.namer.elementAccess(helper);
   }
 }