Construct IntLiterals with type fIntLiteral.

Change-Id: I96a6ef80849f93bba593116fd482f69ff787de5f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/353039
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
3 files changed