8273314: Add tier4 test groups

Reviewed-by: serb, iignatyev

Author: shipilev

test/hotspot/jtreg/TEST.groups

@@ -464,6 +464,13 @@ tier3 = \
   :hotspot_tier3_runtime \
   :tier3_gc_shenandoah
 
+# Everything that is not in other tiers, but not apps
+tier4 = \
+  :hotspot_all_no_apps \
+ -:tier1 \
+ -:tier2 \
+ -:tier3
+
 hotspot_tier2_runtime = \
   runtime/ \
  -runtime/CommandLine/OptionsValidation/TestOptionsWithRanges.java \

test/jaxp/TEST.groups

@@ -32,5 +32,8 @@ tier2 = \
 # No tier 3 tests.
 tier3 = 
 
+# No tier 4 tests.
+tier4 =
+
 jaxp_all = \
     javax/xml/jaxp

test/jdk/TEST.groups

@@ -76,6 +76,13 @@ tier3 = \
     :jdk_rmi \
     :jdk_jfr_tier3
 
+# Everything not in other tiers
+tier4 = \
+    / \
+   -:tier1 \
+   -:tier2 \
+   -:tier3
+
 ###############################################################################
 #
 # Other test definitions; generally smaller granularity than tiers

test/langtools/TEST.groups

@@ -87,3 +87,6 @@ tier2 = \
 
 # No langtools tests are tier 3 either.
 tier3 =
+
+# No langtools tests are tier 4 either.
+tier4 =