ASSERT (DRT+ASan when pcache is enabled) vmareas.c:1255 info->cache==NULL

_From [timurrrr@google.com](https://code.google.com/u/timurrrr@google.com/) on February 11, 2013 11:50:58_

Steps to repro:
0) Build DRT, Release build

1) Build DR with
cmake -DDR_EXT_DRMGR_STATIC=ON -DDR_EXT_DRSYMS_STATIC=ON \
-DDR_EXT_DRUTIL_STATIC=ON -DDR_EXT_DRWRAP_STATIC=ON \
-DCMAKE_BUILD_TYPE=Debug ..

2) Run:
./dr/exports/bin64/drrun -debug -v -loglevel 1 -no_enable_reset -persist -persist_dir /tmp/pcache -- ./DumpRenderTree /home/timurrrr/bb.html
-> the first run is OK

3) Run once again, the same cmdline:
...
cache == NULL
(Error occurred @15574 frags)
version 4.0.1888, custom build
...
0x0000000040d7e830 0x00000000711171ff
0x0000000040d7e990 0x00000000711bf32f
0x0000000040d7e9c0 0x00000000711bf95c
0x0000000040d7ea70 0x00000000711c4c2b
0x0000000040d7eab0 0x00000000711c4c85
0x0000000040d7eae0 0x00000000710b8601
0x0000000040d7eb30 0x00000000711ca317
0x0000000040d7ebe0 0x00000000712d42b2
0x0000000040d7ecd0 0x00000000712d4edb
0x0000000040d7ee40 0x000000007110d2a0
0x0000000040d7ee70 0x0000000071104d85
0x0000000040d7ef10 0x000000007110182e
0x0000000040d7eff0 0x0000000040d32e8d
0x00007fff0d6f67d0 0x00007f8545e1669a>

_Original issue: http://code.google.com/p/dynamorio/issues/detail?id=1072_