Update existing TestCreate methods to honor the inputFP in the TestData.

This can be leveraged to build chains of test FPs in a controlled way.
At present, `inputFP` it is never set to anything other than null; as
such, all calls to TestCreate continue to set a null inputFP
(exactly as they do already).

Change-Id: I0d74f37a076ca338e44ff734816299beb1667c26
Bug: skia:10384
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/302668
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
24 files changed