Reland V8: Run simple-leak-check step on release and trybot

scripts/slave/recipes/v8.expected/full_tryserver_v8_v8_linux64_rel_ng.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'custom_deps': {'v8/third_party/valgrind': 'https://chromium.googlesource.com/chromium/deps/valgrind/binaries'}, 'deps_file': '.DEPS.git', 'managed': True, 'name': 'v8', 'url': 'https://chromium.googlesource.com/v8/v8'}]",
       "--patch_root",
       "v8",
@@ skipping 128 matching lines @@
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "runhooks"
     ],
     "cwd": "[SLAVE_BUILD]/v8",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "GYP_CHROMIUM_NO_ACTION": "1",
-      "GYP_DEFINES": "dcheck_always_on=1 fastbuild=1 gomadir='[CACHE]/cipd/goma' target_arch=x64 test_isolation_mode=prepare use_goma=1 v8_target_arch=x64",
+      "GYP_DEFINES": "dcheck_always_on=1 fastbuild=1 gomadir='[CACHE]/cipd/goma' has_valgrind=1 target_arch=x64 test_isolation_mode=prepare use_goma=1 v8_target_arch=x64",
       "GYP_GENERATORS": "ninja",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/tools/runit.py",
@@ skipping 164 matching lines @@
       "batcharchive",
       "--dump-json",
       "/path/to/tmp/json",
       "--isolate-server",
       "https://isolateserver.appspot.com",
       "--verbose",
       "[SLAVE_BUILD]/v8/out/Release/bot_default.isolated.gen.json",
       "[SLAVE_BUILD]/v8/out/Release/check-static-initializers.isolated.gen.json",
       "[SLAVE_BUILD]/v8/out/Release/mjsunit.isolated.gen.json",
       "[SLAVE_BUILD]/v8/out/Release/optimize_for_size.isolated.gen.json",
+      "[SLAVE_BUILD]/v8/out/Release/run-valgrind.isolated.gen.json",
       "[SLAVE_BUILD]/v8/out/Release/simdjs.isolated.gen.json",
       "[SLAVE_BUILD]/v8/out/Release/test262.isolated.gen.json"
     ],
     "name": "isolate tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"bot_default\": \"[dummy hash for bot_default]\", @@@",
       "@@@STEP_LOG_LINE@json.output@  \"check-static-initializers\": \"[dummy hash for check-static-initializers]\", @@@",
       "@@@STEP_LOG_LINE@json.output@  \"mjsunit\": \"[dummy hash for mjsunit]\", @@@",
       "@@@STEP_LOG_LINE@json.output@  \"optimize_for_size\": \"[dummy hash for optimize_for_size]\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"run-valgrind\": \"[dummy hash for run-valgrind]\", @@@",
       "@@@STEP_LOG_LINE@json.output@  \"simdjs\": \"[dummy hash for simdjs]\", @@@",
       "@@@STEP_LOG_LINE@json.output@  \"test262\": \"[dummy hash for test262]\"@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [],
     "name": "trigger",
     "trigger_specs": [
@@ skipping 14 matching lines @@
           "patchset": "1",
           "reason": "CQ",
           "requester": "commit-bot@chromium.org",
           "revision": "12345",
           "rietveld": "https://codereview.chromium.org",
           "swarm_hashes": {
             "bot_default": "[dummy hash for bot_default]",
             "check-static-initializers": "[dummy hash for check-static-initializers]",
             "mjsunit": "[dummy hash for mjsunit]",
             "optimize_for_size": "[dummy hash for optimize_for_size]",
+            "run-valgrind": "[dummy hash for run-valgrind]",
             "simdjs": "[dummy hash for simdjs]",
             "test262": "[dummy hash for test262]"
           }
         }
       }
     ],
     "~followup_annotations": [
       "@@@STEP_TEXT@v8_linux64_rel_ng_triggered@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]