hg: jdk9/sandbox/hotspot: Rename log_enabled to log_is_enabled. Add log level develop properly.

[marcus.larsson at oracle.com]

Changeset: 88936413dbe7
Author:    mlarsson
Date:      2015-06-15 10:42 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/88936413dbe7

Rename log_enabled to log_is_enabled. Add log level develop properly.

! src/share/vm/logging/log.hpp
! src/share/vm/logging/logConfiguration.cpp
! src/share/vm/logging/logLevel.hpp