tree f35ea56ac36fb401e495f78adae4e2034040a849
parent e2597dfba7dd985897451891ad1025793682e1d1
author Samir Jindel <sjindel@google.com> 1527520435 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1527520435 +0000

[vm] Support definition of entry-points via @pragma('vm.extern') annotations.

The `@pragma` annotations are evaluated by the constants transformation and
visible to TFA and the precompiler, which match on the "options" field of the
annotation to determine whether to mark the class/procedure as a root.

This required enabling the transformation of annotation constants by default.

# Test Plan

The "vmservice_io.main" entry-point is removed from `main.cc` and annotated with
`@pragma`. All precompiler tests will crash if "vmservice_io.main" is not
available at runtime.

Debug/release precompiler bots are visible in "cl-linux" button.

Change-Id: I03c5d6ba7918672ed9905fcaee8dabe675a93a5d
Reviewed-on: https://dart-review.googlesource.com/56660
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>