Remove 'dumpIr' from writeProgram() and KernelTarget.

pkg/front_end/lib/src/fasta/fasta.dart

 // Copyright (c) 2016, 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 fasta;
 
 import 'dart:async' show Future;
 
 import 'dart:convert' show JSON;
 
 import 'dart:io' show BytesBuilder, Directory, File, exitCode;
 
 import 'package:front_end/file_system.dart';
 import 'package:front_end/physical_file_system.dart';
+import 'package:front_end/src/fasta/kernel/utils.dart';
 import 'package:kernel/binary/ast_to_binary.dart'
     show LibraryFilteringBinaryPrinter;
 
 import 'package:kernel/kernel.dart' show Library, Program, loadProgramFromBytes;
 
 import 'package:kernel/target/targets.dart' show Target, TargetFlags, getTarget;
 
 import 'compiler_command_line.dart' show CompilerCommandLine;
 
 import 'compiler_context.dart' show CompilerContext;
@@ skipping 113 matching lines @@
     }
     String argument = c.options.arguments.first;
     Uri uri = Uri.base.resolve(argument);
     String path = uriTranslator.translate(uri)?.path ?? argument;
     if (path.endsWith(".dart")) {
       kernelTarget.read(uri);
     } else {
       inputError(uri, -1, "Unexpected input: $uri");
     }
     await dillTarget.buildOutlines();
-    await kernelTarget.buildOutlines();
+    var outline = await kernelTarget.buildOutlines();
+    if (c.options.dumpIr && output != null) {
+      printProgramText(outline);
+    }
     await kernelTarget.writeOutline(output);
-    if (c.options.dumpIr && output != null) {
-      kernelTarget.dumpIr();
-    }
     return kernelTarget;
   }
 
   Future<Uri> compile() async {
     KernelTarget kernelTarget = await buildOutline();
     if (exitCode != 0) return null;
     Uri uri = c.options.output;
-    await kernelTarget.buildProgram();
-    await kernelTarget.writeProgram(uri,
-        dumpIr: c.options.dumpIr, verify: c.options.verify);
+    var program = await kernelTarget.buildProgram();
+    if (c.options.dumpIr) printProgramText(program);
+    await kernelTarget.writeProgram(uri, verify: c.options.verify);
     return uri;
   }
 }
 
 Future<CompilationResult> parseScript(
     Uri fileName, Uri packages, Uri patchedSdk,
     {bool verbose: false, bool strongMode: false}) async {
   return parseScriptInFileSystem(
       fileName, PhysicalFileSystem.instance, packages, patchedSdk,
       verbose: verbose, strongMode: strongMode);
@@ skipping 116 matching lines @@
   final BytesBuilder builder = new BytesBuilder();
 
   void add(List<int> data) {
     builder.add(data);
   }
 
   void close() {
     // Nothing to do.
   }
 }