[mjsunit] Add custom tests based on SQLite 3.8.9.

tools/testrunner/local/testsuite.py

Index: tools/testrunner/local/testsuite.py
diff --git a/tools/testrunner/local/testsuite.py b/tools/testrunner/local/testsuite.py
index a152b6dd7e5dcbf6b440c26788cacaac5cb4dbbf..7fea13a4ae3683a19fadab9475ecde9621852ac4 100644
--- a/tools/testrunner/local/testsuite.py
+++ b/tools/testrunner/local/testsuite.py
@@ -93,7 +93,10 @@ class TestSuite(object):
     if testcase.outcomes and statusfile.OnlyStandardVariant(testcase.outcomes):
       return [[]]
     if testcase.outcomes and statusfile.OnlyFastVariants(testcase.outcomes):
-      return filter(lambda flags: flags in FAST_VARIANT_FLAGS, default_flags)
+      # FAST_VARIANTS implies no --always-opt.
+      return [ filter(lambda flag: flag != "--always-opt", f)
+               for f in filter(lambda flags: flags in FAST_VARIANT_FLAGS,
+                               default_flags) ]
     return default_flags
 
   def DownloadData(self):