Change the MEM_Dyn flag so that it means that Mem.xDel exists and must

be used to free the string or blob. Add tighter invariant checks on Mem.

FossilOrigin-Name: e3f6c61e0333d4d237dcd2ba2e404f0a91ee5069

diff --cc manifest
index 3686379a180e4689d5aca5f7412975f73fb5ba53,5a221fb21d0de015b4ba9086fc70a49785e3b50b..e3e4bab9d640460b771f04be38f59db4a3cde281
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C In\sthe\scommand-line\sshell\sadd\sthe\s(undocumented\sand\sunsupported)\s".eqp"\ncommand\sand\s-eqp\scommand-line\soption,\sto\scause\sEXPLAIN\sQUERY\sPLAN\sto\sbe\nrun\son\seach\sSQL\sstatement\sas\sit\sis\sevaluated.\s\sIntended\suse\sis\sfor\sanalysis\nof\sthe\squery\splanner.
- D 2014-02-28T20:47:24.221
 -C Change\sthe\sMEM_Dyn\sflag\sso\sthat\sit\smeans\sthat\sMem.xDel\sexists\sand\smust\sbe\nused\sto\sfree\sthe\sstring\sor\sblob.\s\sAdd\stighter\sinvariant\schecks\son\sMem.
 -D 2014-03-01T18:13:23.744
++C Change\sthe\sMEM_Dyn\sflag\sso\sthat\sit\smeans\sthat\sMem.xDel\sexists\sand\smust\s\nbe\sused\sto\sfree\sthe\sstring\sor\sblob.\sAdd\stighter\sinvariant\schecks\son\sMem.
++D 2014-03-03T00:12:39.825
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 2ef13430cd359f7b361bb863504e227b25cc7f81
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1152,7 -1152,7 +1152,8 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
  F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
- P 0a3579d9b9d2a60bb85a9811bc7936edb88debae
- R 195e6e751f71ffa9e9cfd28d6f8e532d
 -P 354699d50e7d251504a7b3d6fbec9e5bcf99557f
++P e6ecf7337658624d664e1e71ba3fc527fd6578c1 44e1c33767cae3bf2cbd2238831fe67197009b43
+ R 0950c7cf1a1151e6071aa7a5599d1f4e
++T +closed 44e1c33767cae3bf2cbd2238831fe67197009b43
  U drh
- Z d48791979092ee78fb00c8a21c663b3b
 -Z c9678592d0817ad1269cd44af9e6bf96
++Z 4d8fd5c0a86772bcec65a15ca628db9f

diff --cc manifest.uuid
index 6108cf5bede92e5dc215a58523ae639eff19ccbf,764bf41b7a61cb417ccaf428f91c2b4ce82bb766..eadf23b042f3553848bfc0aec58be5e72763309e
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- e6ecf7337658624d664e1e71ba3fc527fd6578c1
 -44e1c33767cae3bf2cbd2238831fe67197009b43
++e3f6c61e0333d4d237dcd2ba2e404f0a91ee5069