Improve the mechanics for JSON parsing by reusing text buffers during the parse. Change-Id: I7fb2cae31e6558a5a0c63fd02e1fc6fec4f9e4b3 Reviewed-on: https://review.haiku-os.org/c/haiku/+/7106 Tested-by: Commit checker robot <[email protected]> Reviewed-by: Jérôme Duval <[email protected]>