RFR(XXS): 8151795: compiler/compilercontrol/parser/DirectiveParserTest.java fails with "assert failed: 0 != 0"

[Christian Thalinger]

Looks good.

> On Mar 14, 2016, at 12:45 AM, Nils Eliasson <nils.eliasson at oracle.com> wrote:
> 
> Hi,
> 
> Summary:
> Adding directives from diagnostic command should treat zero directives in file as failure.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8151795
> Webrev: http://cr.openjdk.java.net/~neliasso/8151795/webrev.01/
> 
> Regards,
> Nils Eliasson