Update test configurations for code serializer

Update test configurations on the bots to test for serializing
after execute (--cache=after-execute) and producing full code
cache (--cache=full-code-cache) options. We no longer need
to test serializing before execute (--cache=code) on the bots.

Bug: v8:7302
Change-Id: I123b07028d9231f6da6145b72b62b9ee31352388
Reviewed-on: https://chromium-review.googlesource.com/869931
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51235}

infra/testing/client.v8.pyl

@@ -17,6 +17,12 @@
     {'name': 'test262_variants', 'variant': 'code_serializer', 'shards': 1},
     {'name': 'benchmarks', 'variant': 'code_serializer', 'shards': 1},
   ],
+  'V8 Linux - debug': [
+    {'name': 'd8testing', 'variant': 'code_serializer_full_code_cache', 'shards': 1},
+    {'name': 'mozilla', 'variant': 'code_serializer_full_code_cache', 'shards': 1},
+    {'name': 'test262_variants', 'variant': 'code_serializer_full_code_cache', 'shards': 1},
+    {'name': 'benchmarks', 'variant': 'code_serializer_full_code_cache', 'shards': 1},
+  ],
   'V8 Linux - gc stress': [
     {'name': 'mjsunit', 'variant': 'slow_path', 'shards': 2},
   ],

tools/testrunner/local/variants.py

@@ -4,7 +4,8 @@
 
 # Use this to run several variants of the tests.
 ALL_VARIANT_FLAGS = {
-  "code_serializer": [["--cache=code"]],
+  "code_serializer": [["--cache=after-execute"]],
+  "code_serializer_full_code_cache": [["--cache=full-code-cache"]],
   "default": [[]],
   "future": [["--future"]],
   # Alias of exhaustive variants, but triggering new test framework features.