Add help for --source option (MI)

[dawn]

Summary

This patch prints info about --source/-s option when --help is specified to lldb-mi.

[abidh]

Lgtm

[clayborg]

Looks good.

lldb/trunk/tools/lldb-mi/MICmnResources.h

enum
     IDE_MI_APP_DESCRIPTION,
     IDE_MI_APP_INFORMATION,
     IDE_MI_APP_ARG_USAGE,
     IDE_MI_APP_ARG_HELP,
     IDE_MI_APP_ARG_VERSION,
     IDE_MI_APP_ARG_VERSION_LONG,
     IDE_MI_APP_ARG_INTERPRETER,
     IDE_MI_APP_ARG_EXECUTEABLE,
+    IDE_MI_APP_ARG_SOURCE,
     IDE_MI_APP_ARG_APP_LOG,
     IDE_MI_APP_ARG_APP_LOG_DIR,
     IDE_MI_APP_ARG_EXAMPLE,
     IDE_MI_APP_ARG_EXECUTABLE,
 
     IDS_STDIN_ERR_INVALID_PROMPT,
     IDS_STDIN_ERR_THREAD_CREATION_FAILED,
     IDS_STDIN_ERR_THREAD_DELETE,

lldb/trunk/tools/lldb-mi/MICmnResources.cpp

"Version: GNU gdb (GDB) 7.4 \n(This is a MI stub on top of LLDB and not GDB)\nAll rights reserved.\n"}, // *** Eclipse needs this
                              "debugging has not been implemented. The MI Driver has\nbeen designed primarily to be used with Eclipse Juno "
                              "and a custom plugin.\nThe custom plugin is not necessary to operate the MI Driver."},
     {IDE_MI_APP_ARG_USAGE, "\nMI driver usage:\n\n\tlldb-mi [--longOption] [-s hortOption] [executeable]\n\n[] = optional argument."},
     {IDE_MI_APP_ARG_HELP, "-h\n--help\n\tPrints out usage information for the MI debugger. Exit the MI\n\tDriver immediately."},
     {IDE_MI_APP_ARG_VERSION, "--version\n\tPrints out GNU (gdb) version information. Exit the MI Driver\n\timmediately."},
     {IDE_MI_APP_ARG_VERSION_LONG, "--versionLong\n\tPrints out MI Driver version information. Exit the MI Driver\n\timmediately."},
     {IDE_MI_APP_ARG_INTERPRETER, "--interpreter\n\t This option is kept for backward compatibility. This executable always run in MI mode"},
     {IDE_MI_APP_ARG_EXECUTEABLE, "--executable\n\tUse the MI Driver in MI mode for the debugging the specified executable." },
+    {IDE_MI_APP_ARG_SOURCE, "-s <filename>\n--source <filename>\n\t"
+                            "Tells the debugger to read in and execute the lldb commands in the\n\t"
+                            "given file, after any file provided on the command line has been\n\tloaded."},
     {IDE_MI_APP_ARG_APP_LOG, "--log\n\tUse this argument to tell the MI Driver to update it's log\n\tfile '%s'."},
     {IDE_MI_APP_ARG_APP_LOG_DIR, "--log-dir\n\tUse this argument to specify the directory the MI Driver\n\twill place the log file in, i.e --log-dir=/tmp." },
     {IDE_MI_APP_ARG_EXAMPLE, "Example MI command:\n\t3-info-gdb-mi-command gdb-set\n\t3^done,command={exists=\"true\"}"},
     {IDE_MI_APP_ARG_EXECUTABLE, "executable (NOT IMPLEMENTED)\n\tThe file path to the executable i.e. '\"C:\\My Dev\\foo.exe\"'."},
     {IDS_STDIN_ERR_INVALID_PROMPT, "Stdin. Invalid prompt description '%s'"},
     {IDS_STDIN_ERR_THREAD_CREATION_FAILED, "Stdin. Thread creation failed '%s'"},
     {IDS_STDIN_ERR_THREAD_DELETE, "Stdin. Thread failed to delete '%s'"},
     {IDS_STDIN_ERR_CHKING_BYTE_AVAILABLE, "Stdin. Peeking on stdin stream '%s'"},

lldb/trunk/tools/lldb-mi/MIDriverMgr.cpp

CMIDriverMgr::GetHelpOnCmdLineArgOptions(void) const
     const CMIUtilString pHelp[] = {
         MIRSRC(IDE_MI_APP_DESCRIPTION),
         MIRSRC(IDE_MI_APP_INFORMATION),
         MIRSRC(IDE_MI_APP_ARG_USAGE),
         MIRSRC(IDE_MI_APP_ARG_HELP),
         MIRSRC(IDE_MI_APP_ARG_VERSION),
         MIRSRC(IDE_MI_APP_ARG_VERSION_LONG),
         MIRSRC(IDE_MI_APP_ARG_INTERPRETER),
+        MIRSRC(IDE_MI_APP_ARG_SOURCE),
         MIRSRC(IDE_MI_APP_ARG_EXECUTEABLE),
         CMIUtilString::Format(MIRSRC(IDE_MI_APP_ARG_APP_LOG), CMICmnLogMediumFile::Instance().GetFileName().c_str()),
         MIRSRC(IDE_MI_APP_ARG_APP_LOG_DIR),
         MIRSRC(IDE_MI_APP_ARG_EXECUTABLE),
         MIRSRC(IDS_CMD_QUIT_HELP),
         MIRSRC(IDE_MI_APP_ARG_EXAMPLE)};
     const MIuint nHelpItems = sizeof pHelp / sizeof pHelp[0];
     CMIUtilString strHelp;