[test] Mark more slow tests

TBR=sigurds@chromium.org
NOTRY=true

Bug: v8:9145
Change-Id: I01829358bc2729d39d06ee40af108b3218e7339d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1585841Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61043}

test/benchmarks/benchmarks.status

@@ -37,14 +37,20 @@
   'octane/typescript': [PASS, SLOW],
 }],  # ALWAYS
 
-['variant == stress', {
+# Slow variants.
+['variant in [jitless, nooptimization, stress]', {
   # Slow tests.
+  'kraken/ai-astar': [PASS, SLOW],
+  'kraken/imaging-desaturate': [PASS, SLOW],
   'octane/box2d': [PASS, SLOW],
   'octane/code-load': [PASS, SLOW],
   'octane/crypto': [PASS, SLOW],
   'octane/gbemu-part1': [PASS, SLOW],
   'octane/pdfjs': [PASS, SLOW],
+  'octane/regexp': [PASS, SLOW],
+}],
 
+['variant == stress', {
   # Too slow for stress mode.
   'octane/mandreel': [SKIP],
   'octane/typescript': [SKIP],
@@ -54,12 +60,6 @@
 }],
 
 ['variant == jitless', {
-  # Slow tests.
-  'kraken/ai-astar': [PASS, SLOW],
-  'kraken/imaging-desaturate': [PASS, SLOW],
-  'octane/crypto': [PASS, SLOW],
-  'octane/regexp': [PASS, SLOW],
-
   # Too slow for jitless mode.
   'octane/zlib': [SKIP],
 }],

test/mozilla/mozilla.status

@@ -202,6 +202,10 @@
   # Slow with arm64 simulator in debug.
   'ecma_3/Statements/regress-302439': [PASS, ['mode == debug', SLOW]],
 
+  # More slow tests.
+  'ecma/Date/15.9.5.9': [PASS, SLOW],
+  'ecma/Expressions/11.7.2': [PASS, SLOW],
+
   ##################### FLAKY TESTS #####################
 
   # These tests time out in debug mode but pass in product mode
@@ -213,7 +217,7 @@
   'js1_5/Regress/regress-203278-1': [PASS, ['mode == debug', FAIL]],
   'js1_5/Regress/regress-244470': [PASS, ['mode == debug', FAIL]],
   'ecma_3/RegExp/regress-209067': [PASS, ['mode == debug', FAIL]],
-  'js1_5/GC/regress-278725': [PASS, ['mode == debug', FAIL]],
+  'js1_5/GC/regress-278725': [PASS, SLOW, ['mode == debug', FAIL]],
   # http://b/issue?id=1206983
   'js1_5/Regress/regress-367561-03': [PASS, ['mode == debug', FAIL], NO_VARIANTS],
   'ecma/FunctionObjects/15.3.1.1-3': [PASS, FAIL, ['mode == debug', NO_VARIANTS]],