src: do not make `Resize(0)`’d buffers base `nullptr`
This fixes issues in which APIs that accept pointers created this way
treat nullptr
and a zero-length buffer differently.
We already do something similar for our Malloc()
implementation.
Fixes: https://github.com/nodejs/node/issues/26514
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
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