Revert "Renamed the 'dartc' launch script to 'dart_analyzer' and adds it to dart-sdk"

compiler/scripts/dartc.sh

 #!/bin/bash --posix
-# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+# Copyright (c) 2011, 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.
 
 set -e
 
 SCRIPT_DIR=$(dirname $0)
-DART_ANALYZER_HOME=$(dirname $SCRIPT_DIR)
-DART_ANALYZER_LIBS=$DART_ANALYZER_HOME/util/analyzer
-
-FOUND_BATCH=0
-FOUND_SDK=0
-for ARG in "$@"
-do
-  case $ARG in
-    -batch|--batch)
-      FOUND_BATCH=1
-      ;;
-    --dart-sdk)
-      FOUND_SDK=1
-      ;;
-    *)
-      ;;
-  esac
-done
-
-DART_SDK=""
-if [ $FOUND_SDK = 0 ] ; then
-  if [ -f $DART_ANALYZER_HOME/lib/core/core_runtime.dart ] ; then
-    DART_SDK="--dart-sdk $DART_ANALYZER_HOME"
-  else
-    DEV_SDKDIR=$(dirname $DART_ANALYZER_HOME)/dart-sdk
-    if [ -d $DEV_SDKDIR ] ; then
-      DART_SDK="--dart-sdk $DEV_SDKDIR"
-    else
-      echo "Couldn't find Dart SDK. Specify with --dart-sdk cmdline argument"
-    fi
-  fi
-fi
-
-
+DARTC_HOME=$(dirname $SCRIPT_DIR)
+DARTC_LIBS=$DARTC_HOME/lib
+DARTC_SDK=$(dirname $DARTC_HOME)/dart-sdk
 
 if [ -x /usr/libexec/java_home ]; then
   export JAVA_HOME=$(/usr/libexec/java_home -v '1.6+')
 fi
 
 EXTRA_JVMARGS="-Xss2M "
 OS=`uname | tr [A-Z] [a-z]`
 if [ "$OS" == "darwin" ] ; then
   # Bump up the heap on Mac VMs, some of which default to 128M or less.
   # Users can specify DART_JVMARGS in the environment to override
   # this setting. Force to 32 bit client vm. 64 bit and server VM make for 
   # poor performance.
   EXTRA_JVMARGS+=" -Xmx256M -client -d32 "
 else
   # On other architectures
   # -batch invocations will do better with a server vm
   # invocations for analyzing a single file do better with a client vm
+  FOUND_BATCH=0
+  for ARG in "$@"
+  do
+    case $ARG in
+      -batch|--batch)
+        FOUND_BATCH=1
+        ;;
+      *)
+        ;;
+    esac
+  done
   if [ $FOUND_BATCH = 0 ] ; then
     EXTRA_JVMARGS+=" -client "
   fi
 fi
 
 exec java $EXTRA_JVMARGS $DART_JVMARGS -ea -classpath "@CLASSPATH@" \
-  com.google.dart.compiler.DartCompiler ${DART_SDK} $@
+  com.google.dart.compiler.DartCompiler --dart-sdk ${DARTC_SDK} $@