Windows dump_syms: Add unittest for a PDB containing PDATA/XDATA

Windows dump_syms: Add unittest for a PDB containing PDATA/XDATA

Also fix a couple of issues with dump_syms_unittest:

* Turn DumpSymsRegressionTest into a parameterized test so it's easier
to see which test file is failing

* Convert dump_syms_regtest.sym to DOS line endings, being careful to
preserve the required spaces at the end of 'STACK WIN' lines

There remain some issues with the these tests:

* Test #4 (omap_reorder_bbs) and #5 (dump_syms_regtest64) will not pass
without the .exe corresponding to the .pdb present, to provide the INFO
line

* Test #5 does not pass, seemingly due a mis-match in the PDB age
between the .pdb file and the .sym file

* Test #5 does not pass without the .exe corresponding to the .pdb
present, to provide the CFI

BUG=None

[jon.turney, 2016-03-10 17:14:55]

jon.turney.1111@gmail.com changed reviewers:
+ ted.mielczarek@gmail.com