Add system trace points for JavaScript VM entry/exit
https://bugs.webkit.org/show_bug.cgi?id=165550
Reviewed by Tim Horton.
Source/JavaScriptCore:
Add trace points for entry/exit into/out of the JS VM.
* runtime/VMEntryScope.cpp:
(JSC::VMEntryScope::VMEntryScope):
(JSC::VMEntryScope::~VMEntryScope):
Source/WTF:
Add trace points for entry/exit into/out of the JS VM.
* wtf/SystemTracing.h:
Tools:
Add trace points for entry/exit into/out of the JS VM.
* Tracing/SystemTracePoints.plist:
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@209489
268f45cc-cd09-0410-ab3c-
d52691b4dbfc