Performance optimization in initMemArray() saves about 750K cycles with only

a 4-byte increase in code size.

FossilOrigin-Name: c3e9cd5e7430be0653a96a2097a695447549980e08cc8bd8d8097a50c954908e

diff --cc manifest
index f855faf0cffd997082a3812fab57b8ebe52b982c,a4673e8d7efe1e0347aec9aa881670e163c9b291..280478ad3fb6dad978448ecb92f6620f67579da4
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Avoid\sunnecessary\sdeinitialization\sof\sthe\sMem.flags\sfield.
- D 2022-02-28T02:35:48.040
 -C The\sperformance\sincrease\sin\sthe\sprevious\scheck-in\sof\sthis\sbranch\swas\sdue\sto\nthe\srevised\sloop\sin\sinitMemArray()\sand\sreordering\sfields\sof\sMem\s-\snot\sthe\ncall\sthe\smemcpy().\s\sChanging\sthe\scode\sto\savoid\smemcpy()\sresults\sin\san\seven\nbetter\sgain,\sand\scode\sthat\sis\sfar\sless\sdodgy.
 -D 2022-02-28T12:08:09.462
++C Performance\soptimization\sin\sinitMemArray()\ssaves\sabout\s750K\scycles\swith\sonly\na\s4-byte\sincrease\sin\scode\ssize.
++D 2022-02-28T12:16:51.464
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1944,8 -1944,8 +1944,9 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 7cf2d1f0396362aae7b93da75c2036d52ba86acba1cc90abca560bcf0314a22f
- R 4d4dfe83297801d5193fce44bd4e8a2e
 -P 7fefd8676110a53e6c98a697e2dbf820740fe602a1e83b6caa8d099c41a15d80
++P bb520293d8c11518ba153b986662f081ebfd781d38eb624c509605fa9148f6e9 d74aa979530d4236f5900d2ef998b27065d352d7c18bcd822e5c8f1041a1a81c
+ R 0cbe8ba68087a6c2d38d406f08a0fa0f
++T +closed d74aa979530d4236f5900d2ef998b27065d352d7c18bcd822e5c8f1041a1a81c
  U drh
- Z 9485415c0ffb00de37ffcb9d694e10b9
 -Z d7015a158f91cecfa6d5c894c1220cae
++Z 9bc2a643cc2decfa66e7a766c34e11ae
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 0689e20b8f9270a72e2345a78ba83350f67ea973,7529ec2db4bed258dea013e1cd1a9bc9c4e27df9..26a86980c5be0a67854912e5a4523da02ff53055
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- bb520293d8c11518ba153b986662f081ebfd781d38eb624c509605fa9148f6e9
 -d74aa979530d4236f5900d2ef998b27065d352d7c18bcd822e5c8f1041a1a81c
++c3e9cd5e7430be0653a96a2097a695447549980e08cc8bd8d8097a50c954908e