Inaccurate search result

[EnixCoda]

When searching tooltip in https://github.com/ant-design/ant-design/blob/3.x-stable/components/tooltip/index.tsx, only part of the content of the /components/tooltip folder showed up. Files like /components/tooltip/index.tsx is missing.

[EnixCoda]

Looks like it is a feature 😅

How it works:
When searching tooltip, both the /components/tooltip dir and its inner /components/tooltip/__tests__/__snapshots__/tooltip.test.js match. And when there are inner items match, not all items of the dir will be displayed.

Such strategy was designed for a cleaner search result. But now it confuses its designer myself.

[EnixCoda]

Well. Perhaps this could be a better solution to the problem.

Instead omitting all unmatched items, all dirs that have no items match will be collapsed. The search result will still be clean in most cases and should not introduce such confusion.

[EnixCoda]

😅 Found another serious problem of search, some files may be missing from search results.

The items in green background are the missing ones. Some of them, which have no highlight characters(b) are included for search logic change. But others are expected to be always included.

Caused by the g flag used in regular expressions.

> r = /./g;
[
    r.test('d'),
    r.test('d'),
    r.test('d'),
    r.test('d'),
]
< [true, false, true, false]

> r = /./;
[
    r.test('d'),
    r.test('d'),
    r.test('d'),
    r.test('d'),
]
< [true, true, true, true]

[EnixCoda]

Fixed in d9272a7