Support [TypeChecking] on dependent/partial interfaces.

Have the [TypeChecking] extended attribute on a partial interface
distribute down to its methods and attributes. This avoids having the
interface that it extends to declare the [TypeChecking] behavior that
the partial interface methods&attributes require.

The attribute's value is appended to any [TypeChecking] attribute
values already present on the partial interface members.

R=haraken,jl@opera.com,bashi
BUG=460550

Review URL: https://codereview.chromium.org/938403007

git-svn-id: svn://svn.chromium.org/blink/trunk@190639 bbb929c8-8fbe-4397-9dbb-9b2b20218538
5 files changed
tree: 50e1254000022f50b6c93dfcbdea40b9b14a9f34
  1. third_party/