The latest dev build has stable summaries so we should start using them.
(Also ensures that analysis options are propogating to the SDK analysis context --- see: https://github.com/dart-lang/sdk/issues/26129.)
Package mapping is already done by the `PackageDependencyTracker` so this extra check is at best not needed. (At worst could cause an unneeded and costly call to `pub list-package-dirs`!)
Updates the analyze command to pass a package map to analysis rather than a file path.
This allows us to avoid creating a needless temporary `.packages` file and host directory and saves us a trip to disk to retrieve the contents when building our URI resolvers for analysis.
TextAlign applies to a whole paragraph instead of applying to an individual
text span. This patch moves the property out of TextStyle and into a separate
property on Text and RichText.
* Move global analysis options file to the repo root
Also restore the analysis options file for stocks example, since
the global options trigger warnings on generated intl files.
* Remove obsolete analysis options file for Material Gallery example
Previously it used Block, which is less efficient for large numbers of items.
Also move the top margin out of the menu item to fix the baseline alignment of
the text.
Fixes#1615
Introduces a new Dart analysis wrapper that works directly with the analyzer API (in favor of shelling out to a separate process).
Some consequences:
* we no longer need to fear parts (simplifying our dart file gathering)
* we can filter by error code (when needed), rather than by error strings
* no more IO scraping
* no need to generate `main()` or to run with `--package-warnings`
* we now specify an analyzer (and linter) version in the pubspec (we’ll want to make sure this doesn’t diverge too far from the analyzer shipped with the SDK but it does give us some room to play with experimental builds)
* no more (re)scanning of error source files (and so no more source cache)
* should generally be a bit simpler and easier to maintain
* runs a bit faster :)
