Fix mistake in kindOf.ts

[anfengchen]

In function miniKindOf: in other case, forget to invoke 'Object.prototype.toString' to get type

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[anfengchen]

Same as #4160

[timdorr]

Can you fix the formatting so tests can pass?

[anfengchen]

@timdorr I'm not familiar with PR. I run 'npm run format' , maybe it will work this time

[timdorr]

Can you remove the package-lock.json change? You have an older version of npm installed. This should just be some code changes.

[anfengchen]

@timdorr this time, I think it's OK

[timdorr]

Went with #4160 because it was first. Thanks for getting the ball rolling again!