api|symtest test failure

_From [mxm...@gmail.com](https://code.google.com/u/101248221827060668005/) on July 13, 2014 07:09:45_

api|symtest debug-internal-32 failed. The test output is:
```
136/141 Testing: code_api|api.symtest
136/141 Test: code_api|api.symtest
Command: "C:/drmemory/backup2/dynamorio/build101/build_debug-internal-32/bin32/drrun.exe" "-s" "60" "-quiet" "-debug" "-use_dll" "C:/drmemory/backup2/dynamorio/build101/build_debug-internal-32/lib32/debug/dynamorio.dll" "-exit0" "-noinject" "-ops" "-stderr_mask 0xC -msgbox_mask 0 -dumpcore_mask 0x7d -staged -code_api " "C:/drmemory/backup2/dynamorio/build101/build_debug-internal-32/suite/tests/bin/api.symtest.exe" "C:/strawberry/c/bin/libstdc++-6.dll"
Directory: C:/drmemory/backup2/dynamorio/build101/build_debug-internal-32/suite/tests
"code_api|api.symtest" start time: Jul 13 17:19 [NON-UTF-8-BYTE-0xCA][NON-UTF-8-BYTE-0xF0][NON-UTF-8-BYTE-0xE0][NON-UTF-8-BYTE-0xF1][NON-UTF-8-BYTE-0xED][NON-UTF-8-BYTE-0xEE][NON-UTF-8-BYTE-0xFF][NON-UTF-8-BYTE-0xF0][NON-UTF-8-BYTE-0xF1][NON-UTF-8-BYTE-0xEA][NON-UTF-8-BYTE-0xEE][NON-UTF-8-BYTE-0xE5] [NON-UTF-8-BYTE-0xE2][NON-UTF-8-BYTE-0xF0][NON-UTF-8-BYTE-0xE5][NON-UTF-8-BYTE-0xEC][NON-UTF-8-BYTE-0xFF]([NON-UTF-8-BYTE-0xE7][NON-UTF-8-BYTE-0xE8][NON-UTF-8-BYTE-0xEC][NON-UTF-8-BYTE-0xE0])
Output:
----------------------------------------------------------

Test time = 1.43 sec
----------------------------------------------------------
Test Fail Reason:
Required regular expression not found.Regex=[^Found operator new[]
?
Found operator new[]
?
Found operator new
?
Found operator new
?
$
]
```

The error occurs only for x64 version libstdc++-6.dll.
So probably, it required additional checks for libstdc++-6.dll version to resolve this issue.

_Original issue: http://code.google.com/p/dynamorio/issues/detail?id=1472_