Various improvements

[elsassph]

• fix timing issue when shutting down debug session before the log processor has finish its job
• fix off-by-one location of "compile errors" when device validates XML components
• fix off-by-one code stepping with debug protocol
• fix errors being dropped when a "line" error is found
• added extra XML error matching
• filter out "generic XML error" on a file if a specific one was captured as well
• fix XML sourcemap resolution; follow mapped source even if we don't have a resolved mapping

Tested both with a "vanilla" Roku project and a brighterscript-processed one.

[TwitchBronBron]

@elsassph you mention in this comment that "downstream expects 1-based". Where exactly is that the case? I don't recall doing 1-based translations in any of my sourcemap work last year, so I'd like to understand this a little better.

[elsassph]

@elsassph you mention in this comment that "downstream expects 1-based". Where exactly is that the case? I don't recall doing 1-based translations in any of my sourcemap work last year, so I'd like to understand this a little better.

Well that's a bit empirical. I'm not sure where the offset happens really :)