RFR 9: 8044051 Test jdk/lambda/vm/InterfaceAccessFlagsTest.java gets IOException during compilation

[Roger Riggs]

Please review this test fix to make the test more robust to 
configuration and
pollution of the temp directory.

Webrev:
    http://cr.openjdk.java.net/~rriggs/webrev-ioex-8044051/

Issue:
   https://bugs.openjdk.java.net/browse/JDK-8044051

Thanks, Roger