Add support for getting the sessionId from instrumentation and sending it to the client

pkg/analysis_server/tool/spec/generate_files

 #!/usr/bin/env bash
 # Copyright (c) 2014, 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.
 #
 # This script generates the following files, based on the contents of
 # spec_input.html:
 #
 # - ../../doc/api.html: The human-readable API spec.
 #
@@ skipping 14 matching lines @@
   echo "$file"
 }
 
 # Unlike $0, $BASH_SOURCE points to the absolute path of this file.
 PROG_NAME="$(follow_links "$BASH_SOURCE")"
 
 SCRIPT_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
 
 ROOT_DIR="$(cd "${SCRIPT_DIR}/../../../.." ; pwd -P)"
 
-BIN_DIR="${ROOT_DIR}/sdk/bin"
-
-if [ -z "$DART_CONFIGURATION" ];
+if [[ $1 == '--arch' && $2 == 'x64' ]];
+then
+  DART_CONFIGURATION="ReleaseX64"
+elif [ -z "$DART_CONFIGURATION" ];
 then
   DART_CONFIGURATION="ReleaseIA32"
 fi
 
 if [[ `uname` == 'Darwin' ]];
 then
-  BUILD_DIR="${ROOT_DIR}/xcodebuild/$DART_CONFIGURATION"
-else
-  BUILD_DIR="${ROOT_DIR}/out/$DART_CONFIGURATION"
+  if [[ $GYP_GENERATORS == 'ninja' ]];
+  then
+    BUILD_DIR="${ROOT_DIR}/out/$DART_CONFIGURATION"
+  else
+    BUILD_DIR="${ROOT_DIR}/xcodebuild/$DART_CONFIGURATION"
+  fi
 fi
 
-PKG_DIR="${BUILD_DIR}/packages"
+PKG_FILE="${ROOT_DIR}/pkg/analysis_server/.packages"
 
-DART="${BIN_DIR}/dart"
+DART="${BUILD_DIR}/dart-sdk/bin/dart"
 
 declare -a VM_OPTIONS
 VM_OPTIONS+=("--checked")
-VM_OPTIONS+=("--package-root=${PKG_DIR}")
+VM_OPTIONS+=("--packages=${PKG_FILE}")
 
 cd "${SCRIPT_DIR}"
 "${DART}" "${VM_OPTIONS[@]}" "generate_all.dart"