8198635: Remove unused safepoint message functions and ShowSafepointMsgs Reviewed-by: eosterlund, gtriantafill

8198251: [Graal] compiler/intrinsics/bmi/verifycode tests fail with Graal on macos Summary: BMI tests should be excluded from Graal JIT testing for now. Reviewed-by: thartmann

Merge

8197589: Update CPU count algorithm when both cpu shares and quotas are used Reviewed-by: dholmes, mseledtsov

8198560: Remove implicit casts from oop to JavaThread* and jlong* Reviewed-by: kbarrett, coleenp, tschatzl

8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532 Summary: Make generate_class_cast_message able to deal with NULL klass from the constant pool. Reviewed-by: hseigel, lfoltan

8198564: Multiple crashes on SPARC Reviewed-by: dholmes, simonis, stefank

8198420: Remove unused extension point AllocationContextStats Reviewed-by: ehelin, tschatzl

8198553: jcmd: separate Metaspace statistics from NMT Reviewed-by: zgu, coleenp

8198551: Rename hotspot_tier1 test group to tier1 Reviewed-by: lfoltan, iignatyev

8198558: Windows does not build without precompiled headers Reviewed-by: coleenp, mlarsson, lfoltan

8198530: Move _gc_policy_counters from GenCollectorPolicy to GenCollectedHeap Reviewed-by: kbarrett, sjohanss

8198528: Move GenerationSpecs from GenCollectorPolicy to GenCollectedHeap Reviewed-by: pliden, sjohanss, kbarrett

8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap Reviewed-by: pliden, sjohanss