Fix the memory leak in CREATE TABLE that occurs if there are two or more

COLLATE clauses on the same column.

FossilOrigin-Name: 7e3820e5b989426c64af46f6bf862b91366ae954

diff --cc manifest
index 3e7f0809e94061e5187f574ba1b6822674e8b9d3,0e613d65e3a3bd070e4002d3d0f61c091a2510d8..69da1f7a962e74b5e1f2e7398a9a2d26dc012cb4
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Improve\smanual\scleaning\sstep\sperformed\sby\sthe\smulti-platform\sbuild\stool\sfor\sMSVC.
- D 2013-06-07T22:12:20.577
 -C Add\stest\scases\sto\sdemonstrate\sthe\smemory\sleak\son\sthe\sCOLLATE\sclause.
 -D 2013-06-09T20:16:26.380
++C Fix\sthe\smemory\sleak\sin\sCREATE\sTABLE\sthat\soccurs\sif\sthere\sare\stwo\sor\smore\nCOLLATE\sclauses\son\sthe\ssame\scolumn.
++D 2013-06-09T20:22:41.259
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 5e41da95d92656a5004b03d3576e8b226858a28e
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1093,7 -1093,7 +1093,7 @@@ F tool/vdbe-compress.tcl f12c884766bd14
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
  F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
- P 6cfd9af5250029c0d275be027b4208c48954a8a1
- R dcf91a597f51d84c0ab2afccdf474a00
- U mistachkin
- Z e27e17fb6daefee7fbcbf46384d56358
 -P 60fc77bc537b099bdd48916746109d0332f839af
++P d5bc1fe1c461bdb3d889ab2e50feb944881822a4 0a60212c9c8404ee079985a58094ed2b2b554d48
+ R 866dc59c759cbc65061f28ee32001d2c
+ U drh
 -Z a5328cd2740f305b4d17636362fdc07d
++Z 8263ab0aca3a813bb75c33a7d2fdca4d

diff --cc manifest.uuid
index e69030e607eaae193e09b471e328970480443481,002808b770fd0652ed22aca137f62cf6917d3ed3..c82f3e71cd3e549d57eb47a57752acb79d2b97df
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- d5bc1fe1c461bdb3d889ab2e50feb944881822a4
 -0a60212c9c8404ee079985a58094ed2b2b554d48
++7e3820e5b989426c64af46f6bf862b91366ae954