8286956: Loom: Define test groups for development/porting use

Reviewed-by: alanb, zgu

Author: shipilev

test/hotspot/jtreg/TEST.groups

@@ -108,6 +108,22 @@ hotspot_vector_2 = \
 hotspot_compiler_arraycopy = \
   compiler/arraycopy/stress
 
+tier1_loom = \
+  :tier1_loom_runtime \
+  :tier1_loom_serviceability
+
+tier1_loom_runtime = \
+  runtime/vthread \
+  runtime/jni/IsVirtualThread
+
+tier1_loom_serviceability = \
+  serviceability/jvmti/vthread \
+  serviceability/jvmti/events \
+  serviceability/dcmd/thread
+
+hotspot_loom = \
+  :tier1_loom
+
 tier1_common = \
   sanity/BasicVMTest.java \
   gtest/GTestWrapper.java \

test/jdk/TEST.groups

@@ -265,6 +265,18 @@ jdk_launcher = \
     tools/launcher \
     sun/tools
 
+jdk_loom = \
+    com/sun/management/HotSpotDiagnosticMXBean/ \
+    java/lang/Thread \
+    java/lang/ThreadGroup \
+    java/lang/management/ThreadMXBean \
+    java/util/concurrent \
+    java/net/vthread \
+    java/nio/channels/vthread \
+    jdk/internal/misc/ThreadFlock \
+    jdk/internal/vm/Continuation \
+    jdk/jfr/threading
+
 #
 # Tool (and tool API) tests are split into core and svc groups
 #