Also modified static reflector to allow writing tests in using
the .ts and using the MetadataCollector.
Also made MetadataCollector be able to use SourceFiles that have
not been bound (that is, don't have the parent property set).
Fixes#9182Fixes#9265
The collector now collects the body of functions that return an
expression as a symbolic 'function'. The static reflector supports
expanding these functions statically to allow provider macros.
Also added support for the array spread operator in both the
collector and the static reflector.
StaticReflector provides more context on errors reported by the
collector.
The metadata collector now records the line and character of the node that
caused it to report the error.
Includes other minor fixes to error reporting and a wording change.
Fixes#8978Closes#9011
Chuck Jazdzewski
Alex Eagle
Kara Erickson
Matias Niemelä
Victor Berchet