Fix a few issues in the dartanalyzer shell scripts.

sdk/bin/dartanalyzer_developer

 #!/bin/bash
 # Copyright (c) 2013, 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 file is used to execute the analyzer by running the jar file.
 # It is a simple wrapper enabling us to have simpler command lines in
 # the testing infrastructure.
 set -e
 
 function follow_links() {
   while [ -h "$1" ]; do
     # On Mac OS, readlink -f doesn't work.
     1="$(readlink "$1")"
   done
   echo "$1"
 }
 
+FOUND_BATCH=0
+for ARG in "$@"
+do
+  case $ARG in
+    -batch|--batch)
+      FOUND_BATCH=1
+      ;;
+    *)
+      ;;
+  esac
+done
+
 # Unlike $0, $BASH_SOURCE points to the absolute path of this file.
 PROG_NAME="$(follow_links "$BASH_SOURCE")"
 
 # Handle the case where the binary dir has been symlinked to.
 CUR_DIR="$(follow_links "$(cd "${PROG_NAME%/*}" ; pwd -P)")"
 
 SDK_DIR="$(cd "${CUR_DIR}/.." ; pwd -P)"
 
 if [ -z "$DART_CONFIGURATION" ];
 then
   DART_CONFIGURATION="ReleaseIA32"
 fi
 
-if [[ `uname` == 'Darwin' ]]; 
+if [ `uname` == 'Darwin' ];
 then
   JAR_DIR="$CUR_DIR"/../../xcodebuild/$DART_CONFIGURATION/dartanalyzer
 else
   JAR_DIR="$CUR_DIR"/../../out/$DART_CONFIGURATION/dartanalyzer
-fi 
+fi
 
 JAR_FILE="$JAR_DIR/dartanalyzer.jar"
 
 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.
   EXTRA_JVMARGS+=" -Xmx256M -client "
 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
-  if [ $FOUND_BATCH = 0 ] ; then
+  if [ $FOUND_BATCH -eq 0 ] ; then
     EXTRA_JVMARGS+=" -client "
   fi
 fi
 
 exec java $EXTRA_JVMARGS -jar $JAR_FILE --dart-sdk "$SDK_DIR" "$@"