### 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_
clearMessageCountHelper(
      fiberID,
      pendingFiberToWarningsMap,
      fiberIDToWarningsMap,
    );
  }
  function updateMostRecentlyInspectedElementIfNecessary(
    fiberID: number,
  ): void {
    if (
      mostRecentlyInspectedElement !== null &&
      mostRecentlyInspectedElement.id === fiberID
    ) {
      hasElementUpdatedSinceLastInspected = true;
    }
  }
  
  function onErrorOrWarning(
    fiber: Fiber,
    type: 'error' | 'warn',
    args: $ReadOnlyArray<any>,
  ): void {
    if (type === 'error') {
      const maybeID = getFiberIDUnsafe(fiber);
      
      if (maybeID != null && forceErrorForFiberIDs.get(maybeID) === true) {
        return;