RFR(XS): 8079545: [TESTBUG] hotspot_basicvmtest doesn't fail even if VM crashes

[Mikael Vidstedt]

Please review this small fix which fixes a problem introduced by 8078017[1].

Bug: https://bugs.openjdk.java.net/browse/JDK-8079545
Webrev: http://cr.openjdk.java.net/~mikael/webrevs/8079545/webrev.00/webrev/

The problem is that the exit value from the inner Makefile invocation is 
not being checked, so even if one of the tests fail the outer make will 
not signal en error. The exit code needs to be explicitly checked.

Cheers,
Mikael

[1] https://bugs.openjdk.java.net/browse/JDK-8078017