Summary:
- From http://hg.openjdk.java.net/mlvm/mlvm/hotspot/file/4cd7d914b0e3/coro-simple.patch.
- Resolve trivial conflicts in: systemDictionary.hpp, thread.cpp, debug.hpp.
- Add an option "EnableCoroutine".

Test Plan: run jtreg tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti

Reviewed-by: tschatzl, coleenp

Summary: Avoid #ifs by introducing the accessor function interpreter_frame_temp_oop_addr().
Reviewed-by: kvn, twisti

8033566: [parfait] warning from b128 for hotspot/src/share/vm/runtime/frame.cpp: JNI primitive type mismatch
Summary: added an assert for checking the return value is <= max_jint
Reviewed-by: coleenp, minqi

Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms.
Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin
Contributed-by: lois.foltan@oracle.com

Summary: Use WinDbg API StackWalk64()
Reviewed-by: zgu, dholmes

Summary: fix method clone_projs() to clone all related MachProj nodes.
Reviewed-by: roland, adlertz

Summary: Minimize redundant verifications of Klasses.
Reviewed-by: hseigel, jmasa

Summary: Add code pc location for compiled code
Reviewed-by: kvn, coleenp
Contributed-by: doug.simon@oracle.com

Summary: Distinguish PPC, PPC64 and PPC32. PPC should guard code needed on any PPC system. PPC32 and PPC64 should guard code needed in a port for the ppc64 or ppc32 instruction set.
Reviewed-by: kvn

Reviewed-by: jrose, kvn, mgronlun

Summary: nmethod::preserve_callee_argument_oops() must take appendix into account.
Reviewed-by: kvn, twisti

Summary: fix null pointer
Reviewed-by: kvn

Reviewed-by: kvn

Summary: Pass down a closure during root scanning to keep the class of the method alive.
Reviewed-by: coleenp, jcoomes

Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: Njmasa &lt;jon.masamitsu@oracle.com&gt;, stefank &lt;stefan.karlsson@oracle.com&gt;, mgerdin &lt;mikael.gerdin@oracle.com&gt;, never <tom.rodriguez@oracle.com>

6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: NJohn Rose &lt;john.r.rose@oracle.com&gt;, Christian Thalinger &lt;christian.thalinger@oracle.com&gt;, Michael Haupt <michael.haupt@oracle.com>

Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa

Summary: improvements of TraceMethodHandles for JSR292
Reviewed-by: never, twisti

Summary: improvements of frame_describe
Reviewed-by: never, twisti

Summary: fix for debug method frame::describe
Reviewed-by: never, kvn

Reviewed-by: kvn, never, jrose

Reviewed-by: kvn, coleenp

Reviewed-by: kvn

Reviewed-by: twisti, jrose

Reviewed-by: kvn, twisti

Reviewed-by: dholmes, bdelsart

Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank

Reviewed-by: coleenp, jrose, kvn, dcubed

Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never

Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp

Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

Summary: 6953477 broke Zero.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: This is the renaming part of 6961697 to keep the actual changes small for review.
Reviewed-by: kvn, never

Reviewed-by: kvn, twisti

Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair