### Describe what you were doing when the bug occurred:
1. I did profiling on a list, that gets updated on each pagination api call.
2. Once the profiling was done, I moved around in the Profiler to view the Flamegraph
3. Moving to second capture, the Profiler crashed.


**DevTools version**: 4.6.0-6cceaeb67

```
Component stack: in ec
    in div
    in div
    in div
    in So
    in Unknown
    in n
    in Unknown
    in div
    in div
    in rl
    in Ze
    in fn
    in Ga
    in _s
```
const {elementType, type, tag} = fiber;
    let resolvedType = type;
    if (typeof type === 'object' && type !== null) {
      resolvedType = resolveFiberType(type);
    }
    let resolvedContext: any = null;
    switch (tag) {
      case CacheComponent:
        return 'Cache';
      case ClassComponent:
      case IncompleteClassComponent:
        return getDisplayName(resolvedType);
      case FunctionComponent:
      case IndeterminateComponent:
        return getDisplayName(resolvedType);
      case ForwardRef: