hg: jdk/submit: 8252250: isnanf is obsolete

[alexander.scherbatiy at bell-sw.com]

Changeset: 78c50095e84f
Author:    avoitylov
Date:      2020-08-31 09:28 +0300
URL:       https://hg.openjdk.java.net/jdk/submit/rev/78c50095e84f

8252250: isnanf is obsolete
Reviewed-by: dcubed, mikael

! src/hotspot/share/utilities/globalDefinitions_gcc.hpp