Split out some source code into new files: wherecode.c, whereexpr.c, and

treeview.c.  Other minor refactoring changes.

FossilOrigin-Name: 50f336818c8509d8b8bde282e9399d2b2b5ea70a

diff --cc manifest
index 4d3f877745ed05beb9637c9d8b0667e72116150d,2ac088fd87c377f44fc846346d759c829e2abbaa..107500a7324012925539d855bd8c042490e88f92
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,9 -1,9 +1,9 @@@
- C Provide\sone\sfinal\sSelect\stree\sdump\sprior\sto\sWHERE\sclause\sanalysis\s\nwhen\s".selecttrace\s0x400"\stracing\sbit\sis\sset\swith\sSELECTTRACE_ENABLED.\nAnalysis\sand\sdebug\schanges\sonly\s-\snormal\sbuilds\sare\sunaffected.
- D 2015-06-05T20:27:26.103
 -C Factor\sout\sthe\sTreeView\sparse\stree\sprinting\smodule\sinto\sa\sseparate\sfile.
 -D 2015-06-08T15:08:15.270
++C Split\sout\ssome\ssource\scode\sinto\snew\sfiles:\swherecode.c,\swhereexpr.c,\sand\ntreeview.c.\s\sOther\sminor\srefactoring\schanges.
++D 2015-06-08T17:40:30.804
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
- F Makefile.in 994bab32a3a69e0c35bd148b65cde49879772964
+ F Makefile.in a7b384855b72378fd860425b128ea5f75296e9d6
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
- F Makefile.msc d37d2c2323df3acae6e24c71a478889421c17264
+ F Makefile.msc 5438dc167466f51349ab0c4497aef547d0c9352c
  F Makefile.vxworks e1b65dea203f054e71653415bd8f96dcaed47858
  F README.md 8ecc12493ff9f820cdea6520a9016001cb2e59b7
  F VERSION ce0ae95abd7121c534f6917c1c8f2b70d9acd4db
@@@ -1282,7 -1285,7 +1285,7 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P 6a9cf063379118dbb95c6cdc6d60af50e9867177
- R 7720d4f64678b0c7b4af503d2d9c054f
 -P 46ef95c108ad8961f2bf3d2dc839d4fb1fddd770
++P 283bf0b64da7acc5aa5812fc659954965002d409 c32ce54ca46a4be4373983be6fd44b1f3a0250d1
+ R b8b4fb0f1a8beaad9f2b2c3f4237ea7b
  U drh
- Z 95e994f89cb6168fd34736cd7cbf5b60
 -Z 10e8e7d0fa9ce8baee6c4a1498d642ba
++Z 5b9788fbc214053ba5053f4dafcfebef

diff --cc manifest.uuid
index c711a8d149ddf0b2c5b77dc1af22047b4fb541f6,28f125a126d986ad8bd5d4d67e38586daa99546d..6f08cec969d78603facf3fa2d05a512d1efe6024
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 283bf0b64da7acc5aa5812fc659954965002d409
 -c32ce54ca46a4be4373983be6fd44b1f3a0250d1
++50f336818c8509d8b8bde282e9399d2b2b5ea70a