abee739921
This is a follow on to https://codereview.chromium.org/2716693003 that refactors analyzer_cli to use ContextBuilder. As a result, dartanalyzer now correctly finds the default flutter analysis options when the project references package:flutter but does not contain an analysis options file. R=brianwilkerson@google.com Review-Url: https://codereview.chromium.org/2710313002 .