hg: code-tools/jmh: profilers: rework checkSupport() to make it more obvious.

[aleksey.shipilev at oracle.com]

Changeset: f860b4c92d13
Author:    shade
Date:      2014-06-30 12:05 +0400
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/f860b4c92d13

profilers: rework checkSupport() to make it more obvious.

! jmh-core/src/main/java/org/openjdk/jmh/profile/AbstractHotspotProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/ClassloaderProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/CompilerProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/GCProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/LinuxPerfAsmProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/LinuxPerfProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/Profiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/ProfilerFactory.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/StackProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/runner/Runner.java
! jmh-core/src/main/java/org/openjdk/jmh/runner/options/CommandLineOptions.java