Search-based code intel hovers are broken when definition token and docstring are separated by multiple lines

Created by: efritz

See for an example https://sourcegraph.com/github.com/CloverHackyColor/CloverBootloader/-/blob/MdeModulePkg/Core/Pei/Hob/Hob.c#L25:1

Generally we try to find the docstring based on searching around the definition token, but the following is also legal, which causes the docstringa nd the definition token to be separated by a larger number of lines + tokens than we expect.

<docstring>
<return type>
<visibility modifier>
<actual definition>(<parameter list>) ...

Original report from Twitter: https://twitter.com/DrJohnZoid/status/1356598073187733504