* Don't show "context" for classes without either contextType or contextTypes
* For classes with contextTypes, change the label to "legacy context" instead

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Originally reported by @gaearon via https://github.com/bvaughn/react-devtools-experimental/issues/368
updateFiberRecursively(current, alternate, null);
      } else if (wasMounted && !isMounted) {
         U
        removeRootPseudoKey(currentRootID);
        recordUnmount(current, false);
      }
    } else {
       M
      setRootPseudoKey(currentRootID, current);
      mountFiberRecursively(current, null);
    }
    if (isProfiling && isProfilingSupported) {
      const commitProfilingMetadata = ((rootToCommitProfilingMetadataMap: any): CommitProfilingMetadataMap).get(
        currentRootID,
      );
      if (commitProfilingMetadata != null) {
        commitProfilingMetadata.push(
          ((currentCommitProfilingMetadata: any): CommitProfilingData),
        );
      } else {
        ((rootToCommitProfilingMetadataMap: any): CommitProfilingMetadataMap).set(
          currentRootID,
          [((currentCommitProfilingMetadata: any): CommitProfilingData)],
        );
      }
    }
     W
    flushPendingEvents(root);
    currentRootID = -1;
  }