Summary: Type hints for parameters can be generic, such as `array<string,int>`. Some of these contain spaces, like `array<string, int>`, which was parsed incorrectly previously. This resulted in a line like ` * @param map<string, string> $attributes (optional) A map of tag attributes.` rendering as `map<string, | $attributes | string> $attributes (optional) A map of tag attributes.` instead of `map<string,string> | $attributes | $attributes (optional) A map of tag attributes.`. Closes T16499 Test Plan: * Run `./bin/diviner generate` on git master * Look at the "Parameters" box on http://phorge.localhost/book/dev/function/phutil_tag/ * Apply this patch * Run `./bin/diviner generate --clean` * Look at the "Parameters" box on http://phorge.localhost/book/dev/function/phutil_tag/ Reviewers: O1 Blessed Committers, aklapper Reviewed By: O1 Blessed Committers, aklapper Subscribers: aklapper, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno Maniphest Tasks: T16499 Differential Revision: https://we.phorge.it/D26752