Add support for SQLITE_LIMIT_PARSER_DEPTH to limit the size of the stack

used by the parser.  This can help prevent deeply nested parse trees that
then cause problems on machines with smaller CPU stacks.  Modify the
%realloc and %free directives of Lemon and add the new %stack_size_limit
directive in support of this capability.

FossilOrigin-Name: 52ba0c731d004409353a55ce8ca5a514ce486a077a2be82db5b8fea7619848d5

diff --cc manifest
index 94b2a3a9ee797a4ef4c57ec6a6723381fe938948,e7c1491bbe08d4c55761423c06d2ea0f84834db6..93c431eeb0738966e15d3b16a2b523a7e55aaf39
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Fix\sincorrect\s"#line"\sgeneration\sin\sLemon.
- D 2025-11-18T10:38:41.356
 -C Modify\sthe\s"%realloc"\sand\s"%free"\scommands\sin\sLemon\sso\sthat\sthe\sfunctions\nthey\sspecify\stake\san\sextra\sparameter\sat\sthe\send,\sthe\s%extra_context\spointer.\nThis\sallows\sthe\simplementation\sto\sdistinguish\sbetween\sOOM\serrors\sand\nfailures\sto\sincrease\sthe\sstack\ssize\sbecause\sof\sthe\sstack\ssize\slimit.
 -D 2025-11-18T15:40:02.793
++C Add\ssupport\sfor\sSQLITE_LIMIT_PARSER_DEPTH\sto\slimit\sthe\ssize\sof\sthe\sstack\nused\sby\sthe\sparser.\s\sThis\scan\shelp\sprevent\sdeeply\snested\sparse\strees\sthat\nthen\scause\sproblems\son\smachines\swith\ssmaller\sCPU\sstacks.\s\sModify\sthe\n%realloc\sand\s%free\sdirectives\sof\sLemon\sand\sadd\sthe\snew\s%stack_size_limit\ndirective\sin\ssupport\sof\sthis\scapability.
++D 2025-11-18T17:27:46.970
  F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@@ -2166,8 -2166,8 +2166,9 @@@ F tool/version-info.c 33d0390ef484b3b1c
  F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
  F tool/warnings.sh d924598cf2f55a4ecbc2aeb055c10bd5f48114793e7ba25f9585435da29e7e98
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P ea48567ac54e4949a8b68977a58a5de7946e074ae8737133071d02f40ac97f34
- R 956e0d8d894da87712e963f1d74f3842
 -P 41fe19ab054acda912bc32dd6f9c6412416ab1af6cf55515e96c89fb55b46424
++P 5c0214df2c0a7470ac2edca0c483a3edd3c39ef0739688ab9a06e23882200360 9862c945d9a8531f9bef123aee9ed1fd3f64542250a57beb3a150227bc3c1a12
+ R eaedc8a6fb66bf638a3308ee531542c6
++T +closed 9862c945d9a8531f9bef123aee9ed1fd3f64542250a57beb3a150227bc3c1a12
  U drh
- Z 160fdfae770c78987ceedbc701266298
 -Z cd45861cdfb2c55973d9d3bae678a719
++Z 8fa707feb9cf8e2d7e31b1de8f81f137
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 2a8ebfafeb37b385a2745b17c3eb7e08bb44d562,fbcb312fee2a6ec4ecb2a29100f57467885e6485..da46dff811d8b2bf44ead4e4a84151b899a4fd0a
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 5c0214df2c0a7470ac2edca0c483a3edd3c39ef0739688ab9a06e23882200360
 -9862c945d9a8531f9bef123aee9ed1fd3f64542250a57beb3a150227bc3c1a12
++52ba0c731d004409353a55ce8ca5a514ce486a077a2be82db5b8fea7619848d5