[test] Enable test status filtering by variant

tools/testrunner/local/variants.py

Index: tools/testrunner/local/variants.py
diff --git a/tools/testrunner/local/variants.py b/tools/testrunner/local/variants.py
new file mode 100644
index 0000000000000000000000000000000000000000..bb029978a232b7c6e7b0afa314899560b540e557
--- /dev/null
+++ b/tools/testrunner/local/variants.py
@@ -0,0 +1,30 @@
+# Copyright 2016 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Use this to run several variants of the tests.
+ALL_VARIANT_FLAGS = {
+  "default": [[]],
+  "stress": [["--stress-opt", "--always-opt"]],
+  "turbofan": [["--turbo"]],
+  "turbofan_opt": [["--turbo", "--always-opt"]],
+  "nocrankshaft": [["--nocrankshaft"]],
+  "ignition": [["--ignition"]],
+  "ignition_turbofan": [["--ignition-staging", "--turbo"]],
+  "preparser": [["--min-preparse-length=0"]],
+}
+
+# FAST_VARIANTS implies no --always-opt.
+FAST_VARIANT_FLAGS = {
+  "default": [[]],
+  "stress": [["--stress-opt"]],
+  "turbofan": [["--turbo"]],
+  "nocrankshaft": [["--nocrankshaft"]],
+  "ignition": [["--ignition"]],
+  "ignition_turbofan": [["--ignition-staging", "--turbo"]],
+  "preparser": [["--min-preparse-length=0"]],
+}
+
+ALL_VARIANTS = set(["default", "stress", "turbofan", "turbofan_opt",
+                    "nocrankshaft", "ignition", "ignition_turbofan",
+                    "preparser"])