Follow up from https://github.com/facebook/react/pull/11616.

Here's one I found. These two invariants:

https://github.com/facebook/react/blob/7e7127387ba64f57299eaff8656542cea6fb3a2d/packages/react-reconciler/src/ReactFiberClassComponent.js#L330-L343

are in a function that's behind a DEV block:

https://github.com/facebook/react/blob/7e7127387ba64f57299eaff8656542cea6fb3a2d/packages/react-reconciler/src/ReactFiberClassComponent.js#L447-L449

I don't think this is intentional, but need to verify.

There may be more. I'll use this issue to track while https://github.com/facebook/react/pull/11616 preserves existing behavior.
it('should reconnect number and string versions of a number', () =>
        expectMarkupMatch(
          <div style={{width: '1px', height: 2}} />,
          <div style={{width: 1, height: '2px'}} />,
        ));
      it('should error reconnecting reordered style values', () =>
        expectMarkupMismatch(
          <div style={{width: '1px', fontSize: '2px'}} />,
          <div style={{fontSize: '2px', width: '1px'}} />,
        ));
      it('can explicitly ignore errors reconnecting added style values', () =>
        expectMarkupMatch(
          <div style={{}} />,
          <div style={{width: '1px'}} suppressHydrationWarning={true} />,
        ));
      it('can explicitly ignore reconnecting different style values', () =>
        expectMarkupMatch(
          <div style={{width: '1px'}} />,
          <div style={{width: '2px'}} suppressHydrationWarning={true} />,
        ));
    });
    describe('text nodes', function() {
      it('should error reconnecting different text', () =>
        expectMarkupMismatch(<div>Text</div>, <div>Other Text</div>));
      it('should reconnect a div with a number and string version of number', () =>
        expectMarkupMatch(<div>{2}</div>, <div>2</div>));
      it('should error reconnecting different numbers', () =>
        expectMarkupMismatch(<div>{2}</div>, <div>{3}</div>));
      it('should error reconnecting different number from text', () =>
        expectMarkupMismatch(<div>{2}</div>, <div>3</div>));