Main goal here was to get rid of the enter/exit compilation unit tracking, to allow further Compiler/Server refactoring. We can get the Uri/LineInfo/contents off Source, which AnalysisError already has
SummaryReporter is now fairly generic.
TODOs for the future:
* figure out what to do about ErrorCodes, in particular dev_compiler prefix feels off.
* skip the intermediate StaticInfo types? They're really just builders now for AnalysisError.
* don't classify all existing messages as "AnalyzerError" ... just print them ...
* skip logger. For our command line program, stdout is part of its "API", IMO it shouldn't use logging for those messages. Consider Pub, which uses stdout/err for its messages, and uses logging for more detailed troubleshooting.
R=pquitslund@google.com, vsm@google.com
Review URL: https://codereview.chromium.org/1230903002.
John Messerly
bc4e0f2a38