Fix for fuzzer-discovered error in SPIR-V compilation.
Unused InterfaceBlocks were not added to the ProgramUsage map. The
ProgramUsageVisitor now makes sure to account for them during its
Auto-Submit: John Stiles <email@example.com>
Commit-Queue: Brian Osman <firstname.lastname@example.org>
Reviewed-by: Brian Osman <email@example.com>
5 files changed