8181917: Refactor UL LogStreams to avoid using resource area
Reviewed-by: ehelin, mlarsson

8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
8182656: Make the required changes in GC code to build on OSX 10 + Xcode 8
8182657: Make the required changes in Runtime code to build on OSX 10 + Xcode 8
8182658: Make the required changes in Compiler code to build on OSX 10 + Xcode 8
Reviewed-by: jwilhelm, ehelin, phh
Contributed-by: phh <hohensee@amazon.com>, jwilhelm <jesper.wilhelmsson@oracle.com>

8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
Summary: Refactor debug.hpp and reverse include dependency.
Reviewed-by: coleenp, stefank, dcubed

8179889: Fix typographic errors in copyright headers
Reviewed-by: erikj, dholmes

8172098: A lot of gtests uses TEST instead of TEST_VM
Reviewed-by: iignatyev

8170936: Logging: LogFileOutput.invalid_file_test crashes when executed twice.
Reviewed-by: iignatyev, stuefe

8171517: test_logMessageTest.cpp has "ac_heapanied" instead of "accompanied" inside copyright notice
Reviewed-by: sspitsyn, jprovino

8170919: LogStreamTest tests crash if they are run first
Reviewed-by: jwilhelm, mlarsson

8169003: LogDecorations.iso8601_utctime_test fails if numeric locale uses "," as separator between integer and fraction part
Reviewed-by: mlarsson, iignatyev

8146009: "pure virtual method called" with using new GC logging mechanism
Reviewed-by: dsamersoff, dholmes, mchernov
Contributed-by: marcus.larsson@oracle.com, michail.chernov@oracle.com

8166117: Add UTC timestamp decorator for UL
Reviewed-by: rehn, rprotacio

8167190: Remove confusing timestamps from the gc log
Reviewed-by: sjohanss, pliden

8165687: Fix license and copyright headers in jd9 under hotspot/test
Summary: Legal notices and Oracle copyrights were updated (white and blank space, commas) in tests files for uniformity to meet Oracle requirements.
Reviewed-by: dholmes, iris
Contributed-by: Stanislav Smirnov <stanislav.smirnov@oracle.com>, Vassili Igouchkine <vassili.igouchkine@oracle.com>

8165600: Convert internal logging tests to GTest
Reviewed-by: rehn, rprotacio

8165704: Convert LogStream internal tests to GTest
Reviewed-by: rehn, rprotacio

8165702: Convert LogFileOutput internal tests to GTest
Reviewed-by: rehn, rprotacio

8165700: Convert LogMessage internal tests to GTest
Reviewed-by: rehn, rprotacio

8165698: Convert LogTagSet related internal tests to GTest
Reviewed-by: rehn, rprotacio

8165696: Convert gcTraceTime internal tests to GTest
Reviewed-by: rehn, rprotacio

8166925: several native TESTs should be changed to TEST_VM
Reviewed-by: vlivanov, kzhaldyb

8164939: GTest LogDecorations.iso8601_time_test fails on macOS
Reviewed-by: sla, dsamersoff

8165215: Setting same UL tag multiple times matches wrong tagset
Reviewed-by: mlarsson, rprotacio

8157948: UL allows same log file with multiple file=
Reviewed-by: dholmes, rehn

8150823: UL disables log outputs incorrectly
Reviewed-by: rehn, sla

8150894: Unused -Xlog tag sequences are silently ignored.
Reviewed-by: rehn, sla

8061219: Implement unit-tests for UL
Reviewed-by: coleenp, mockner, rprotacio