* Don't use the CMICmdArgValFile::GetFileNamePath for the CMIDriver::m_strCmdLineArgExecuteableFileNamePath
because it wraps path with spaces into quotes what is already being done in CMIDriver::LocalDebugSessionStartupExecuteCommands
* Improve the MiSyntaxTestCase.test_lldbmi_specialchars test to catch this error
```
$ bin/lldb-mi "~/p/ hello"
(gdb)
-file-exec-and-symbols "\"~/p/ hello\""
^error,msg="Command 'file-exec-and-symbols'. Target binary '\"~/p/ hello\"' is invalid. error: unable to find executable for '/"~/p/ hello/"'"
```
llvm-svn: 234888