[foreign] RFR 8216483: jextract tests have to be modified to run on Windows platform

[Sundararajan Athijegannathan]

All test run fine on Mac with this latest patch! I'll test on Linux as 
well and then send you review comments.

-Sundar

On 10/01/19, 9:40 PM, Jorn Vernee wrote:
> Hi,
>
> Continuation of [1].
>
> updated webrev: 
> http://cr.openjdk.java.net/~jvernee/panama/webrevs/windows_tests/webrev.04/
>
> For the TestJextractFFI test I'm now just checking the operating 
> system in the LibClang.java patch file:
>
>     String libName = System.getProperty("os.name").startsWith("Windows")
>             ? "libclang"
>             : "clang";
>     Library libclang = Libraries.loadLibrary(MethodHandles.lookup(), 
> libName);
>
> The other problem is that the dll is in the bin folder vs lib folder 
> on Windows, and the test was using the linker path which is the lib 
> folder on Windows. There was no build system variable available for 
> the folder that contains the library file, so instead I'm deriving it 
> from the library file path.
>
> Cheers,
> Jorn
>
> [1] : 
> https://mail.openjdk.java.net/pipermail/panama-dev/2019-January/003691.html