Type mockControl as ? so that tests that are type-checked don't need to suppress type warnings or do type casts for mocks.
Type mockControl as ? so that tests that are type-checked don't need to suppress type warnings or do type casts for mocks.

RELNOTES: n/a

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=189612027

lucidsoftware/closure-library,lucidsoftware/closure-library,google/closure-library,lucidsoftware/closure-library,google/closure-library,teppeis/closure-library,teppeis/closure-library,teppeis/closure-library,lucidsoftware/closure-library,google/closure-library,teppeis/closure-library,google/closure-library,google/closure-library