Fix most com tests

[lwahonen]

No description provided.

[lwahonen]

As requested in #406

[dblock]

Thank you.

[dblock]

It's better, on my machine it fails in these:

 [junit] Testcase: testAddressOfMember(com.sun.jna.platform.win32.COM.ITypeInfoTest):        Caused an ERROR
 [junit] Didn't find address for function in any of the type infos
 [junit] java.lang.RuntimeException: Didn't find address for function in any of the type infos
 [junit]     at com.sun.jna.platform.win32.COM.ITypeInfoTest.testAddressOfMember(ITypeInfoTest.java:201)
 [junit]
 [junit]
 [junit] Testcase: testGetDllEntry(com.sun.jna.platform.win32.COM.ITypeInfoTest):    Caused an ERROR
 [junit] Didn't find Dll entry for member in any of the type infos
 [junit] java.lang.RuntimeException: Didn't find Dll entry for member in any of the type infos
 [junit]     at com.sun.jna.platform.win32.COM.ITypeInfoTest.testGetDllEntry(ITypeInfoTest.java:182)
 [junit]
 [junit]
 [junit] Test com.sun.jna.platform.win32.COM.ITypeInfoTest FAILED
 [junit] Testsuite: com.sun.jna.platform.win32.COM.ITypeLibTest
 [junit] Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.646 sec
 [junit]
 [junit] Testcase: testFindName(com.sun.jna.platform.win32.COM.ITypeLibTest):        Caused an ERROR
 [junit] The parameter is incorrect. (puArgErr=)
 [junit] com.sun.jna.platform.win32.COM.COMException: The parameter is incorrect. (puArgErr=)
 [junit]     at com.sun.jna.platform.win32.COM.COMUtils.checkRC(COMUtils.java:112)
 [junit]     at com.sun.jna.platform.win32.COM.COMUtils.checkRC(COMUtils.java:95)
 [junit]     at com.sun.jna.platform.win32.COM.ITypeLibTest.testFindName(ITypeLibTest.java:136)
 [junit]
 [junit]