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

pkg/compiler/lib/src/dart2js.dart

 // Copyright (c) 2013, 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 dart2js.cmdline;
 
 import 'dart:async'
     show Future, EventSink;
 import 'dart:convert' show UTF8, LineSplitter;
 import 'dart:io'
@@ skipping 98 matching lines @@
   List<String> options = new List<String>();
   bool explicitOut = false;
   bool wantHelp = false;
   bool wantVersion = false;
   String outputLanguage = 'JavaScript';
   bool stripArgumentSet = false;
   bool analyzeOnly = false;
   bool analyzeAll = false;
   bool enableAsyncAwait = false;
   bool trustTypeAnnotations = false;
+  bool trustPrimitives = false;
   bool checkedMode = false;
   // List of provided options that imply that output is expected.
   List<String> optionsImplyCompilation = <String>[];
   bool hasDisallowUnsafeEval = false;
   // TODO(johnniwinther): Measure time for reading files.
   SourceFileProvider inputProvider = new CompilerSourceFileProvider();
   diagnosticHandler = new FormattingDiagnosticHandler(inputProvider);
   Map<String, dynamic> environment = new Map<String, dynamic>();
 
   passThrough(String argument) => options.add(argument);
@@ skipping 74 matching lines @@
   implyCompilation(String argument) {
     optionsImplyCompilation.add(argument);
     passThrough(argument);
   }
 
   setTrustTypeAnnotations(String argument) {
     trustTypeAnnotations = true;
     implyCompilation(argument);
   }
 
+  setTrustPrimitives(String argument) {
+    trustPrimitives = true;
+    implyCompilation(argument);
+  }
+
   setCheckedMode(String argument) {
     checkedMode = true;
     passThrough(argument);
   }
 
   addInEnvironment(String argument) {
     int eqIndex = argument.indexOf('=');
     String name = argument.substring(2, eqIndex);
     String value = argument.substring(eqIndex + 1);
     environment[name] = value;
@@ skipping 79 matching lines @@
     new OptionHandler('--enable-diagnostic-colors',
                       (_) => diagnosticHandler.enableColors = true),
     new OptionHandler('--enable[_-]checked[_-]mode|--checked',
                       (_) => setCheckedMode('--enable-checked-mode')),
     new OptionHandler('--enable-concrete-type-inference',
                       (_) => implyCompilation(
                           '--enable-concrete-type-inference')),
     new OptionHandler('--trust-type-annotations',
                       (_) => setTrustTypeAnnotations(
                           '--trust-type-annotations')),
+    new OptionHandler('--trust-primitives',
+                      (_) => setTrustPrimitives(
+                          '--trust-primitives')),
     new OptionHandler(r'--help|/\?|/h', (_) => wantHelp = true),
     new OptionHandler('--package-root=.+|-p.+', setPackageRoot),
     new OptionHandler('--analyze-all', setAnalyzeAll),
     new OptionHandler('--analyze-only', setAnalyzeOnly),
     new OptionHandler('--analyze-signatures-only', setAnalyzeOnly),
     new OptionHandler('--disable-native-live-type-analysis', passThrough),
     new OptionHandler('--categories=.*', setCategories),
     new OptionHandler('--disable-type-inference', implyCompilation),
     new OptionHandler('--terse', passThrough),
     new OptionHandler('--dump-info', implyCompilation),
@@ skipping 357 matching lines @@
       } else if (exitCode == 253) {
         print(">>> TEST CRASH");
       } else {
         print(">>> TEST FAIL");
       }
       stderr.writeln(">>> EOF STDERR");
       subscription.resume();
     });
   });
 }