### Website or app

https://codesandbox.io/s/react-playground-forked-j4niq

### Repro steps

Emoji seem supported but produce strange symbole

![image](https://user-images.githubusercontent.com/24865815/133793744-55a55582-90ad-425f-8a40-4c061a3c1d80.png)

To test emoji on Window Os, use `[win]+[.]` 🟩


### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

_No response_

### Error component stack (automated)

_No response_

### GitHub query string (automated)

_No response_
return fiber.flags !== undefined ? fiber.flags : (fiber: any).effectTag;
}
const getCurrentTime =
  typeof performance === 'object' && typeof performance.now === 'function'
    ? () => performance.now()
    : () => Date.now();
export function getInternalReactConstants(
  version: string,
): {|
  getDisplayNameForFiber: getDisplayNameForFiberType,
  getTypeSymbol: getTypeSymbolType,
  ReactPriorityLevels: ReactPriorityLevelsType,
  ReactTypeOfSideEffect: ReactTypeOfSideEffectType,
  ReactTypeOfWork: WorkTagMap,
|} {
  const ReactTypeOfSideEffect: ReactTypeOfSideEffectType = {
    DidCapture: 0b10000000,
    NoFlags: 0b00,
    PerformedWork: 0b01,
    Placement: 0b10,
    Incomplete: 0b10000000000000,
  };