8017578: Hotspot compilation error with latest Studio compiler
Summary: Make the destructor virtual (note more non-compiler hotspot errors occur downstream)
Reviewed-by: kvn, twisti
8019625: Test compiler/8005956/PolynomialRoot.java timeouts on Solaris SPARCs
Summary: Disable the test for SPARC and reduce the number of test iterations
Reviewed-by: kvn
8020059: The flag introduced by 8014972 is not defined if Hotspot is built without a compiler (zero, ppc64 core build).
Summary: define CodeCacheMinimumUseSpace flag for cppInterpeter build.
Reviewed-by: kvn