Fix harmless compiler warnings when using -W4 with MSVC.

FossilOrigin-Name: e693e11d1b9265974c32bddba873ea30a4d0b708

diff --cc manifest
index 18464b0405877937ef73af686bd8ffb1dd02316e,93b2f587fc57f061d5ff784bce5131cd30b33ee6..b5afb1c517ab33033d729e658148bbcb1854f4cc
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,10 -1,10 +1,10 @@@
- C Add\san\sassert()\sin\sorder\sto\scalm\sa\sscan-build\swarning.
- D 2015-01-12T17:56:06.382
 -C Fix\sharmless\scompiler\swarning\sin\san\sassert()\sstatement.
 -D 2015-01-12T20:25:33.360
++C Fix\sharmless\scompiler\swarnings\swhen\susing\s-W4\swith\sMSVC.
++D 2015-01-12T21:43:00.602
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
- F Makefile.in 876093578650b28af50a20c819993ee779885adb
+ F Makefile.in 9efcdb5c6025caea362cdfc38817451170fc6344
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
- F Makefile.msc b363b90fe1bfc3b87d190f2f728a126c00d9ce09
- F Makefile.vxworks 034289efa9d591b04b1a73598623119c306cbba0
+ F Makefile.msc 4c057774e6138b9023fc16ec05639ddd3329b152
+ F Makefile.vxworks e1b65dea203f054e71653415bd8f96dcaed47858
  F README.md d58e3bebc0a4145e0f2a87994015fdb575a8e866
  F VERSION d846487aff892625eb8e75960234e7285f0462fe
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@@ -1235,7 -1236,7 +1236,7 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P 46f3aba2692d74c29ab5c1f24a6daac600fd6af8
- R 92ea1bf6542c9d9c7faa1f3f4f13619f
- U drh
- Z e7423f8002cbebe040ecb69ba833d201
 -P de30d5b053b8e004418c81945d626cfad315d6ba
++P 11e81ac2a7c917f7c9afc218d104d9870daf9668 bdbeed01ddc60a4ab322621fc118cc4767660fd3
+ R 79278f99b3f4d9aaeb5b2b5be8f618ce
+ U mistachkin
 -Z 02f72f6c4a80a1aa451e44b57450d7f3
++Z 24816da0c39ded9b418b6d7a785804dc

diff --cc manifest.uuid
index 37e56a13ff0886aa8eac10cc0bc15e05f8467384,b8a7124d0509d363db5614a5e607b0ee6f59101c..a243cd4a6517e4fe7e2e62969cf7cd488605510c
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 11e81ac2a7c917f7c9afc218d104d9870daf9668
 -bdbeed01ddc60a4ab322621fc118cc4767660fd3
++e693e11d1b9265974c32bddba873ea30a4d0b708