Detect formatted React.createClass calls

[OskarEichler]

Summary:

The source-optimized preset enables React's display-name transform only when the exact bytes React.createClass are present. Valid comments or whitespace around the member access, such as React /* comment */ . createClass(...), bypass the transform and omit the inferred component displayName, unlike the full preset path.

Use the stable createClass identifier token as the cheap source probe while retaining the separate createReactClass probe. Formatting no longer changes output; unrelated token matches only enable an otherwise no-op Babel visitor.

Changelog:

[GENERAL] [FIXED] - Detect trivia-separated React.createClass calls in optimized preset configuration.

Test Plan:

• Added an optimized-source regression with comment/whitespace-separated member access.
• Exact baseline omits displayName; the fixed transform emits displayName: "Component".
• Full preset Jest passes: 4/4 suites, 111/111 tests, 16 snapshots.
• Fresh Flow check reports 0 errors.
• Targeted no-ignore ESLint, Prettier, and git diff --check pass.

No public API or breaking behavior change; optimized and full preset paths now agree for valid formatting.