Skip some mozilla tests on turbofan_opt as they consistently timeout

test/mozilla/mozilla.status

Index: test/mozilla/mozilla.status
diff --git a/test/mozilla/mozilla.status b/test/mozilla/mozilla.status
index 26503bfa6e1073b0f78dab874fbacec5b0dac25c..d5b967408be230c5f991465b40bdf997da2da6e6 100644
--- a/test/mozilla/mozilla.status
+++ b/test/mozilla/mozilla.status
@@ -870,6 +870,18 @@
 }],  # ALWAYS
 
 
+['variant == turbofan_opt', {
+  # These timeout flakily under CFI/turbofan_opt
+  'js1_5/Regress/regress-360969-05': [SKIP],
+  'js1_5/Regress/regress-360969-06': [SKIP],
+
+  # These timeout under CFI/turbofan_opt
+  'ecma/FunctionObjects/15.3.1.1-3': [SKIP],
+  'ecma/FunctionObjects/15.3.2.1-3': [SKIP],
+  'ecma/FunctionObjects/15.3.5-1': [SKIP],
+}],  # variant == turbofan_opt
+
+
 ['no_i18n == True and mode == debug', {
   # Tests too slow for no18n debug.
   'ecma_3/Statements/regress-302439': [PASS, FAST_VARIANTS],