8165455: Tracing events for G1 have incorrect metadata
Reviewed-by: egahlin, tschatzl

8151085: Change G1 concurrent timer and tracer measuring time
Summary: Change measuring time for G1 concurrent phases and reporting heap summary
Reviewed-by: brutisso, sjohanss

8136679: JFR event for adaptive IHOP
Reviewed-by: tbenson, mgerdin, sangheki, ehelin

8134953: Make the GC ID available in a central place
Reviewed-by: pliden, jmasa

8136627: Backout JDK-8133818 Additional number of processed references printed with -XX:+PrintReferenceGC after JDK-8047125
Reviewed-by: brutisso

Merge

8066443: Add G1 support for promotion event
Reviewed-by: tschatzl

8133818: Additional number of processed references printed with -XX:+PrintReferenceGC after JDK-8047125
Summary: Test contributed by brutisso
Reviewed-by: tonyp, tschatzl

8133530: Add JFR event for evacuation statistics
Summary: Introduce two new JFR events for young/old generation allocation statistics based on previous changes.
Reviewed-by: ehelin, mgerdin

8078901: Add trace event for G1 MMU information
Reviewed-by: ehelin, mlarsson

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david