Need reviewer - fixing tests to work with CYGWIN

[Kelly O'Hair]

Need reviewer - fixing tests to work with CYGWIN

No hurry on this. I think it's final, but need to run the tests
a few times with both MKS and cygwin, and on all platforms to verify
I haven't broken anything.

6910834: TEST: java/io/File/Basic.java fails on Windows CYGWIN environment
6910835: TESTS: 3 java/io run.sh tests fail when run on Windows XP CYGWIN
6911104: Tests do not work with CYGWIN: tools, sun/tools, and com/sun/tools
6911108: These tests do not work with CYGWIN: java/util
6911112: Tests do not work with CYGWIN: javax/imageio/, javax/script/, and sun/misc/
6911113: These tests do not work with CYGWIN: java/nio
6911117: These tests do not work with CYGWIN: com/sun/jdi
6911129: These tests do not work with CYGWIN: java/lang
6911131: Test does not work with CYGWIN: sun/management/jmxremote/bootstrap/RmiSslNoKeyStoreTest.sh

http://cr.openjdk.java.net/~ohair/openjdk7/jdk7-tl-tests/webrev/

-kto