Replace Java based analyzer with Dart based analyzer when building SDK

sdk/bin/dartanalyzer.bat

 @echo off
-rem Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-rem for details. All rights reserved. Use of this source code is governed by a
-rem BSD-style license that can be found in the LICENSE file.
+REM Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+REM for details. All rights reserved. Use of this source code is governed by a
+REM BSD-style license that can be found in the LICENSE file.
 
-set SCRIPT_DIR=%~dp0
-if %SCRIPT_DIR:~-1%==\ set SCRIPT_DIR=%SCRIPT_DIR:~0,-1%
+setlocal
+rem Handle the case where dart-sdk/bin has been symlinked to.
+set DIR_NAME_WITH_SLASH=%~dp0
+set DIR_NAME=%DIR_NAME_WITH_SLASH:~0,-1%%
+call :follow_links "%DIR_NAME%", RETURNED_BIN_DIR
+rem Get rid of surrounding quotes.
+for %%i in ("%RETURNED_BIN_DIR%") do set BIN_DIR=%%~fi
 
-for %%I in ("%SCRIPT_DIR%\..") do set "DART_ANALYZER_HOME=%%~fI"
-if %DART_ANALYZER_HOME:~-1%==\ set DART_ANALYZER_HOME=%DART_ANALYZER_HOME:~0,-1%
+set DART=%BIN_DIR%\dart
+set SNAPSHOT=%BIN_DIR%\snapshots\dartanalyzer.dart.snapshot
 
-set FOUND_BATCH=0
-set FOUND_SDK=0
-for %%a in (%*) do (
-  if [%%a] == [--batch] set FOUND_BATCH=1
-  if [%%a] == [-b] set FOUND_BATCH=1
-  if [%%a] == [--dart-sdk]  set FOUND_SDK=1
+"%DART%" "%SNAPSHOT%" %*
+
+endlocal
+
+exit /b %errorlevel%
+
+rem Follow the symbolic links (junctions points) using `dir to determine the
+rem canonical path. Output with a link looks something like this
+rem
+rem 01/03/2013  10:11 PM    <JUNCTION>     abc def
+rem [c:\dart_bleeding\dart-repo.9\dart\build\ReleaseIA32\dart-sdk]
+rem
+rem So in the output of 'dir /a:l "targetdir"' we are looking for a filename
+rem surrounded by right angle bracket and left square bracket. Once we get
+rem the filename, which is name of the link, we recursively follow that.
+:follow_links
+setlocal
+for %%i in (%1) do set result=%%~fi
+set current=
+for /f "usebackq tokens=2 delims=[]" %%i in (`dir /a:l "%~dp1" 2^>nul ^
+                                             ^| find ">     %~n1 ["`) do (
+  set current=%%i
 )
+if not "%current%"=="" call :follow_links "%current%", result
+endlocal & set %~2=%result%
+goto :eof
 
-setlocal EnableDelayedExpansion
-set DART_SDK=""
-if [%FOUND_SDK%] == [0] (
-  if exist "%DART_ANALYZER_HOME%\lib\core\core.dart" (
-    set DART_SDK=--dart-sdk "%DART_ANALYZER_HOME%"
-  ) else (
-    for /f %%i in ('echo %DART_ANALYZER_HOME%') do set DART_SDK_HOME=%%~dpi\dart-sdk
-    if exist "!DART_SDK_HOME!" (
-      set DART_SDK=--dart-sdk !DART_SDK_HOME!
-    ) else (
-      for /f %%j in ('call echo !DART_SDK_HOME!') do set DART_SDK_HOME=%%~dpj\dart-sdk
-      if exist "!DART_SDK_HOME!" (
-        set DART_SDK=--dart-sdk !DART_SDK_HOME!
-      ) else (
-        echo Couldn't find Dart SDK. Specify with --dart-sdk cmdline argument
-      )
-    )
-  )
-)
-endlocal & set DART_SDK=%DART_SDK% & set DART_SDK_HOME=%DART_SDK_HOME%
-
-if exist "%DART_SDK_HOME%\util\dartanalyzer\dartanalyzer.jar" (
-  set DART_ANALYZER_LIBS=%DART_SDK_HOME%\util\dartanalyzer
-) else if exist "%DART_ANALYZER_HOME%\util\dartanalyzer\dartanalyzer.jar" (
-  set DART_ANALYZER_LIBS=%DART_ANALYZER_HOME%\util\dartanalyzer
-) else (
-  echo Configuration problem. Couldn't find dartanalyzer.jar.
-  exit /b 1
-)
-
-setlocal EnableDelayedExpansion
-set EXTRA_JVMARGS=-Xss2M 
-if [%FOUND_BATCH%] == [1] (
-  set EXTRA_JVMARGS=!EXTRA_JVMARGS! -client
-)
-endlocal & set "EXTRA_JVMARGS=%EXTRA_JVMARGS%"
-
-java %EXTRA_JVMARGS% %DART_JVMARGS% -ea -jar "%DART_ANALYZER_LIBS%\dartanalyzer.jar" %DART_SDK% %*
+:end