Expose text and cluster information in SkTextBlob::Iter when
SK_UNTIL_CRBUG_1187654_IS_FIXED is defined. The names are postfixed
with _forTest to indicate that these values are only being exposed for
testing purposes. This will allow blink tests to better verify the
output SkTextBlobs from the ShapeResultBloberizer. The long term goal
is to only store these results when necessary in a blink side type.
Bug: chromium:1187654,chromium:738643
Change-Id: I8db20a8423e5b0652429ddc16cf8fd14940217cb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/384336
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
f913c6639d