Fix asserts in hash.c so that zero-length symbols can be used. (CVS 6563)

FossilOrigin-Name: fe9f00aa369051beee09ab3d1a2e046a1f679a40
diff --git a/manifest b/manifest
index b81cc47..f60ce6a 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C When\stesting\swith\sTEMP_STORE=3\sand\sthe\stest\spcache,\sonly\srun\s20\siterations\sin\strans.test.\sOtherwise\sthe\stest\spcache\sruns\sout\sof\smemory.\s(CVS\s6562)
-D 2009-04-28T16:37:59
+C Fix\sasserts\sin\shash.c\sso\sthat\szero-length\ssymbols\scan\sbe\sused.\s(CVS\s6563)
+D 2009-04-28T17:33:16
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in 583e87706abc3026960ed759aff6371faf84c211
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -118,7 +118,7 @@
 F src/fault.c dc88c821842157460750d2d61a8a8b4197d047ff
 F src/func.c f667fe886309707c7178542073bb0ced00a9fae7
 F src/global.c 448419c44ce0701104c2121b0e06919b44514c0c
-F src/hash.c 407e5ca13cab32db529e2c364463a2512fb4d554
+F src/hash.c 0caea57f020226903cd8591125732e1e19f17f14
 F src/hash.h 457e230c3b2bd3c56742824d43b16618ff30d7c0
 F src/hwtime.h 4a1d45f4cae1f402ea19686acf24acf4f0cb53cb
 F src/insert.c 71286d081a919a27ef22eaeccbe2718f93dc6aa9
@@ -725,7 +725,7 @@
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P fcf70bb8b8ab7682d46fa7e75338dfd8ecf472a3
-R f022dd20d2d20a410af92f00ba03cb0e
-U danielk1977
-Z 16e75750ddeb2e6afa65f477ae899bec
+P 0799b729a7fe50ee935ac3bd9f95118288d33f6e
+R ed47ef3fdd770523aeb817c8583bd54b
+U drh
+Z ccfe377a65ebed82e5d5b10e09019e6e