The timezone data in Fuchsia is at a fixed path. This will have the
flutter runner attempt to load it and log, but not fail if loading
does not work out.
Added two tests
(1) Shows that the specific TZ data version loaded takes effect after
initialization
(2) Shows that when TZ data files are absent the initialization
continues.
Ensure that the string data backing package.resolved_url is not modified
or moved by making a copy to pass as the argument value for
TRACE_DURATION.
PT-169 #comment
Change-Id: I1ef6ab9b1ecf350e82134d1d616a841611ac19c6
Ported from Topaz tree.
Corects a bnuch of typeos throughout teh engien codebsae. Also makes
a couple minor Commonwealth -> US spelling adjustments for consistency
with the rest of Flutter's codebase.
Made use of `misspell` tool:
https://github.com/client9/misspell
