Improved tracing and debugging support on windows.

FossilOrigin-Name: 5c965a71b957fdb0310ac1af9bf2fc3b418af668

diff --cc manifest
index 63d5d9eccfe64d1054181300537e0289bfc93a88,0a765e257a75e90cb5ba837811402bbd6dc1bf3f..5d40a858f2676211a0415d88342b02f5fd3f8955
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C On\swindows,\sflush\sthe\smapping\sview\swhen\ssyncing\scontent\sto\sdisk.
- D 2015-03-31T19:40:05.313
 -C Set\sthe\swinShm.id\smember\swhen\sit\sis\sgoing\sto\sbe\straced.
 -D 2015-03-31T19:17:44.993
++C Improved\stracing\sand\sdebugging\ssupport\son\swindows.
++D 2015-04-01T01:26:12.429
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 00d12636df7a5b08af09116bcd6c7bfd49b8b3b4
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -212,10 -212,10 +212,10 @@@ F src/mutex_w32.c 61660ada28d8308ad190f
  F src/notify.c 9711a7575036f0d3040ba61bc6e217f13a9888e7
  F src/os.c 8fd25588eeba74068d41102d26810e216999b6c8
  F src/os.h 3e57a24e2794a94d3cf2342c6d9a884888cd96bf
- F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
+ F src/os_common.h 4fccbf81ef328c9ac231211de379e753b1365313
  F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
  F src/os_unix.c a4dadbc2da41599e99093e91e276c38c17a73b89
- F src/os_win.c 03d27be3a20048ef52a648d5f0a15f5edda9f2a3
 -F src/os_win.c 87ae49ff973c3e01fff4cd002e1bbc135a63107e
++F src/os_win.c eeb317cd504f39ef2dbcf50eb228bc9dd301d024
  F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
  F src/pager.c 4120a49ecd37697e28f5ed807f470b9c0b88410c
  F src/pager.h c3476e7c89cdf1c6914e50a11f3714e30b4e0a77
@@@ -1248,8 -1248,7 +1248,8 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P ea697e6d9ff1f4d77774589a02ba4a18feafbf03 45acf6a85150839d591316418dad59ae20ce3aa4
- R 00dcdcdf447a25afe74cb2a2ac195e0b
- T +closed 45acf6a85150839d591316418dad59ae20ce3aa4
 -P f79c236fc537ecee1ea7448a3e3216a2415561a1
 -R c0e6ffe8bce6c29d87c8228cd21b6e7e
 -U mistachkin
 -Z c7f453d4a005311b5f674545bd39b5a8
++P a828e73dc1ae50189bdf73f60caeb7308738ad7a fa7916b67efbc44e6f115bb0d32d8b92fd0acf3c
++R 7fa87c853794881c54344291c71c3804
++T +closed fa7916b67efbc44e6f115bb0d32d8b92fd0acf3c
 +U drh
- Z e131d4f6392434ebe038899ef79bd289
++Z ed8d955d5896e461a30bebb3cc60c312

diff --cc manifest.uuid
index 6301587c11d75563165b8d7533e3a090c046303d,5fdcfe2a1c620a8ecc7a2e587e166513d318e012..d53ff492b95603e0cea7f722662d9a41cdf0aa05
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- a828e73dc1ae50189bdf73f60caeb7308738ad7a
 -fa7916b67efbc44e6f115bb0d32d8b92fd0acf3c
++5c965a71b957fdb0310ac1af9bf2fc3b418af668

diff --cc src/os_win.c
Simple merge