hg: loom/loom: Fix of thread state transition assert in Continuation::thaw

[serguei.spitsyn at oracle.com]

Changeset: d60eb5da27b5
Author:    sspitsyn
Date:      2019-04-26 11:04 -0700
URL:       http://hg.openjdk.java.net/loom/loom/rev/d60eb5da27b5

Fix of thread state transition assert in Continuation::thaw

! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/share/prims/jvmtiExport.cpp
! src/hotspot/share/prims/jvmtiExport.hpp
! src/hotspot/share/prims/jvmtiManageCapabilities.cpp
! src/hotspot/share/runtime/continuation.cpp
! src/hotspot/share/runtime/continuation.hpp
! test/hotspot/jtreg/serviceability/jvmti/ContinuationTest/libContinuationTest.cpp