Reduce the size of ExprList to 24-bytes per entry, down from 32-bytes per

entry.  This helps keep lookaside allocations in the mini-size.

FossilOrigin-Name: bda92d92bf69a73bc6dd498f92578ad6e81111a3f97bc8724d1720e7283a83b6

diff --cc manifest
index 5576b7e3231f788c77a6376e4e2b2241ed27e882,e65f7b1b680b755c16a4f40fa521077ca05d805f..06e42be717424ce31114783943f4f11f944e5e10
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Reduce\sthe\snumber\sof\scall\ssites\sto\sdbMallocRawFinish\sin\sthe\scase\swhere\sn\s>\slookaside.sz
- D 2019-12-12T20:58:32.965
 -C Tie\sup\sthe\sloose\sends\sin\sthe\sExprList\ssize\sreduction.
 -D 2019-12-13T00:49:42.494
++C Reduce\sthe\ssize\sof\sExprList\sto\s24-bytes\sper\sentry,\sdown\sfrom\s32-bytes\sper\nentry.\s\sThis\shelps\skeep\slookaside\sallocations\sin\sthe\smini-size.
++D 2019-12-13T01:12:21.115
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1852,7 -1852,7 +1852,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 611020e3378f4c81c277cccd84807ae51a816bbab6c3d887c91c5e5af3b5225f
- R ad47704ebb6417a0219438b5b1af0ca2
- U numist
- Z 7cabc14d06c02da6aca77386b2ebbfdc
 -P fdda76cfb01bf2b19522ac4558b443634d28a69b0828677c42682b645eae1f3b
 -R 1f0ba04ae14155cebfb37c7f11e00a7b
++P e392e7f22861ce4b66e4bf84b59c8fd38568fc241a699e001f47fd82011f4d28 59d0f3afe5249a2a6453fe7bc810c2c7beb896d3800174c7c90f9304c0b1ad88
++R e3ff512e1397b6f86c243712e8e279ca
+ U drh
 -Z 64cc739752f0df56bd4f170960481f66
++Z 3ffe0d20b28fddd879606871dbd0d175

diff --cc manifest.uuid
index a46bfa5958ab818991fbb8f35a237a4cbbf2abd1,c0090acd671b57693bb909b86a853d7ce453bac3..1f4e273627a128e7cc4eac07090f10efc6d78332
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- e392e7f22861ce4b66e4bf84b59c8fd38568fc241a699e001f47fd82011f4d28
 -59d0f3afe5249a2a6453fe7bc810c2c7beb896d3800174c7c90f9304c0b1ad88
++bda92d92bf69a73bc6dd498f92578ad6e81111a3f97bc8724d1720e7283a83b6