Added build files for the analyzer and analysis_server packages.

pkg/analysis_server/BUILD.gn

Index: pkg/analysis_server/BUILD.gn
diff --git a/pkg/analysis_server/BUILD.gn b/pkg/analysis_server/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..9e65d54907d14244d393941f2ce6c726696727e4
--- /dev/null
+++ b/pkg/analysis_server/BUILD.gn
@@ -0,0 +1,25 @@
+# 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.
+
+import("//build/dart/dart_package.gni")
+
+dart_package("analysis_server") {
+  package_name = "analysis_server"
+
+  source_dir = "lib"
+
+  deps = [
+    "//dart/pkg/analyzer",
+    "//third_party/dart-pkg/pub/args",
+    "//third_party/dart-pkg/pub/dart_style",
+    "//third_party/dart-pkg/pub/isolate",
+    "//third_party/dart-pkg/pub/linter",
+    "//third_party/dart-pkg/pub/logging",
+    "//third_party/dart-pkg/pub/package_config",
+    "//third_party/dart-pkg/pub/path",
+    "//third_party/dart-pkg/pub/plugin",
+    "//third_party/dart-pkg/pub/watcher",
+    "//third_party/dart-pkg/pub/yaml",
+  ]
+}