test/lib/jdk/test/lib/jfr/EventNames.java

8196341: Add JFR events for parallel phases of G1

     public final static String G1AdaptiveIHOP = PREFIX + "G1AdaptiveIHOP";
     public final static String G1EvacuationYoungStatistics = PREFIX + "G1EvacuationYoungStatistics";
     public final static String G1EvacuationOldStatistics = PREFIX + "G1EvacuationOldStatistics";
     public final static String G1BasicIHOP = PREFIX + "G1BasicIHOP";
     public final static String AllocationRequiringGC = PREFIX + "AllocationRequiringGC";
+    public final static String GCPhaseParallel = PREFIX + "GCPhaseParallel";
 
     // Compiler
     public final static String Compilation = PREFIX + "Compilation";
     public final static String CompilerPhase = PREFIX + "CompilerPhase";
     public final static String CompilationFailure = PREFIX + "CompilationFailure";