ERROR: MixedAnyArrayAccess - input.hack:2:12 - Unsafe array access on value with type any
ERROR: MixedAnyArrayAccess - input.hack:7:16 - Unsafe array access on value with type truthy-from-any
ERROR: MixedAnyArrayAccess - input.hack:14:16 - Unsafe array access on value with type nonnull-from-any
ERROR: MixedAnyArrayAccess - input.hack:21:12 - Unsafe array access on value with type any
ERROR: MixedArrayAccess - input.hack:25:9 - Unsafe array access on value with type mixed