fe: minor change to benchmarks to match what the runners expect

pkg/compiler/tool/perf.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.
 
 /// An entrypoint used to run portions of dart2js and measure its performance.
 library compiler.tool.perf;
 
 import 'dart:async';
 import 'dart:io';
 
@@ skipping 191 matching lines @@
   var token = new Scanner(source).tokenize();
   scanTimer.stop();
   return token;
 }
 
 /// Report that metric [name] took [time] micro-seconds to process
 /// [scanTotalChars] characters.
 void report(String name, int time) {
   var sb = new StringBuffer();
   sb.write('$name: $time us, ${time ~/ 1000} ms');
-  sb.write(', ${scanTotalChars * 1000 ~/ time} chars/ms');
+  sb.write(', ${time * 1000 ~/ scanTotalChars} ns/char');
   print('$sb');
 }
 
 /// Listener that parses out just the uri in imports, exports, and part
 /// directives.
 class DirectiveListener extends Listener {
   Set<String> targets = new Set<String>();
 
   bool inDirective = false;
   void enterDirective() {
@@ skipping 147 matching lines @@
 
         phase = Compiler.PHASE_RESOLVING;
         enqueuer.resolution.applyImpact(mainImpact);
         // Note: we enqueue everything in the program so we measure generating
         // kernel for the entire code, not just what's reachable from main.
         libraryLoader.libraries.forEach((LibraryElement library) {
           enqueuer.resolution.applyImpact(computeImpactForLibrary(library));
         });
 
         if (deferredLoadTask.isProgramSplit) {
-          enqueuer.resolution.applyImpact(
-              backend.computeDeferredLoadingImpact());
+          enqueuer.resolution
+              .applyImpact(backend.computeDeferredLoadingImpact());
         }
         enqueuer.resolution.applyImpact(backend.computeHelpersImpact());
         resolveLibraryMetadata();
         reporter.log('Resolving...');
         processQueue(enqueuer.resolution, mainFunction);
         enqueuer.resolution.logSummary(reporter.log);
 
         (reporter as CompilerDiagnosticReporter)
             .reportSuppressedMessagesSummary();
 
         if (compilationFailed) {
           // TODO(sigmund): more diagnostics?
           print("compilation failed!");
           exit(1);
         }
 
         closeResolution();
         var program = (backend as dynamic).kernelTask.program;
         print('total libraries: ${program.libraries.length}');
       });
 }