Fix harmless compiler warnings and improve the MSVC makefile.

FossilOrigin-Name: c632567063d81c4be404ce58cbac0eff7412f565

diff --cc manifest
index 3b885119799be5ad1e250f5f164382fd9157b027,ce20ef4e0494cca58e53e3d609739530bd0d3a9a..ac8e7ab09e9b5dd1eca6dfdf962976a1b3078498
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Fix\stwo\spotential\s(and\sapparently\sharmless)\sshift\soverflows\sdiscovered\sby\nthe\s-fcatch-undefined-behavior\soption\sof\sclang.
- D 2013-12-05T16:41:55.583
 -C Make\suse\sof\sthe\sCC\snmake\smacro\seven\swhen\scross-compiling\s(with\sMSVC).
 -D 2013-12-03T23:33:29.475
++C Fix\sharmless\scompiler\swarnings\sand\simprove\sthe\sMSVC\smakefile.
++D 2013-12-05T17:12:47.544
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in e1a9b4258bbde53f5636f4e238c65b7e11459e2b
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1145,7 -1145,7 +1145,8 @@@ F tool/vdbe-compress.tcl f12c884766bd14
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
  F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
- P eca7d3f1612c7a009a9e4ef89f76f9b7e275d1e6
- R ba7aebdef816e4dde9f2f30108dfb7a9
 -P a12d214ecccc5d3372dbcedc88705b0092363971
 -R 96895a4eb8660c34d34f5a43c1d0b764
 -U mistachkin
 -Z 57ab0c18bcd1f41d722261f64b89de43
++P e19eead8c9977ed4f00eac54c5bc7e90db78caa8 aae7b30ebd9601882a02fe8cf46fbf0390ec3fac
++R 39f74301df16683d1c19ab7ca83b6451
++T +closed aae7b30ebd9601882a02fe8cf46fbf0390ec3fac
 +U drh
- Z d225deef3eea562cd29618981c6f7c47
++Z b21886c5e68a29fa7489a30bb0f632c3

diff --cc manifest.uuid
index 7d458eb3259b5c70712cdf3fecbe1812103e7903,ce4e0f70693b330a558cb3873ed7b38ed6209479..047c9ce82464e8e07da61a3883d7d0732c580fb5
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- e19eead8c9977ed4f00eac54c5bc7e90db78caa8
 -aae7b30ebd9601882a02fe8cf46fbf0390ec3fac
++c632567063d81c4be404ce58cbac0eff7412f565