Add two memory usage benchmarks

pkg/analysis_server/benchmark/perf/benchmark_local.dart

Index: pkg/analysis_server/benchmark/perf/benchmark_local.dart
diff --git a/pkg/analysis_server/benchmark/perf/benchmark_local.dart b/pkg/analysis_server/benchmark/perf/benchmark_local.dart
index a6fd493461fb5011732244522f240ac6643719ad..8cbdb8979fb0c238e5fe2b0a59fda373aeb924cb 100644
--- a/pkg/analysis_server/benchmark/perf/benchmark_local.dart
+++ b/pkg/analysis_server/benchmark/perf/benchmark_local.dart
@@ -9,6 +9,7 @@ import 'dart:async';
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 
 import 'benchmark_scenario.dart';
+import 'memory_tests.dart';
 
 main(List<String> args) async {
   int length = args.length;
@@ -35,6 +36,9 @@ main(List<String> args) async {
   await run_local_completion_3();
   await run_local_completion_4();
   await run_local_refactoring_1();
+
+  await run_memory_initialAnalysis_1();
+  await run_memory_initialAnalysis_2();
 }
 
 PathHolder paths;
@@ -224,6 +228,35 @@ Future run_local_refactoring_1() async {
   printBenchmarkResults(id, description, times);
 }
 
+Future run_memory_initialAnalysis_1() async {
+  String id = 'memory-initialAnalysis-1';
+  String description = r'''
+1. Start server, set 'analyzer' and 'analysis_server' analysis roots.

[scheglov, 2016/07/06 17:55:04]

I as can see, we set only "analyzer" as the analysis root.

+2. Measure the memory usage after finishing initial analysis.
+3. Shutdown the server.
+4. Go to (1).
+''';
+  List<int> sizes = await AnalysisServerMemoryUsageTest
+      .start_waitInitialAnalysis_shutdown(
+          roots: <String>[paths.analyzer], numOfRepeats: 3);
+  printMemoryResults(id, description, sizes);
+}
+
+Future run_memory_initialAnalysis_2() async {
+  String id = 'memory-initialAnalysis-2';
+  String description = r'''
+1. Start server, set 'analyzer' and 'analysis_server' analysis roots.
+2. Measure the memory usage after finishing initial analysis.
+3. Shutdown the server.
+4. Go to (1).
+''';
+  List<int> sizes = await AnalysisServerMemoryUsageTest
+      .start_waitInitialAnalysis_shutdown(
+          roots: <String>[paths.analyzer, paths.analysisServer],
+          numOfRepeats: 3);
+  printMemoryResults(id, description, sizes);
+}
+
 class PathHolder {
   String analysisServer;
   String analyzer;