kUnknown           59 src/type-info.h   static TypeInfo Unknown() { return TypeInfo(kUnknown); }
kUnknown           85 src/type-info.h     ASSERT(t == kUnknown ||
kUnknown          125 src/type-info.h     return type_ == kUnknown;
kUnknown          179 src/type-info.h       case kUnknown: return "Unknown";