bug#41200: Displaying a tooltip with x-show-tip gets very slow as more faces are defined

[Clément Pit-Claudel]

On 13/05/2020 10.58, martin rudalics wrote:
>> Indeed, you're completely right; thanks!  Replacing face_alist and
>> Vface_new_frame_defaults with hash tables makes the worst example
>> about 10 times faster, and with that change tooltips now take 30 to
>> 50ms to display instead of 500-600ms in my real-life use case (my
>> usual config).  I have attached a patch.
> 
> GCC throws the following error here:

Woops, thanks. I misread the signature of make_hash_table.  I've attached an 
updated patch.

0001-Store-frame-faces-in-hash-tables-instead-of-alists.patch
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