Version 3.20.15

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index c68beb5ed92931d9c78b1315481b219a68957977..5fc5d880b3e236e559451fa1939cd66f289255a7 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -174,7 +174,6 @@ DEFINE_bool(harmony_iteration, false, "enable harmony iteration (for-of)")
 DEFINE_bool(harmony_numeric_literals, false,
             "enable harmony numeric literals (0o77, 0b11)")
 DEFINE_bool(harmony_strings, false, "enable harmony string")
-DEFINE_bool(harmony_arrays, false, "enable harmony arrays")
 DEFINE_bool(harmony, false, "enable all harmony features (except typeof)")
 DEFINE_implication(harmony, harmony_scoping)
 DEFINE_implication(harmony, harmony_modules)
@@ -186,7 +185,6 @@ DEFINE_implication(harmony, harmony_generators)
 DEFINE_implication(harmony, harmony_iteration)
 DEFINE_implication(harmony, harmony_numeric_literals)
 DEFINE_implication(harmony, harmony_strings)
-DEFINE_implication(harmony, harmony_arrays)
 DEFINE_implication(harmony_modules, harmony_scoping)
 DEFINE_implication(harmony_observation, harmony_collections)
 // TODO[dslomov] add harmony => harmony_typed_arrays
@@ -267,6 +265,7 @@ DEFINE_bool(trap_on_deopt, false, "put a break point before deoptimizing")
 DEFINE_bool(deoptimize_uncommon_cases, true, "deoptimize uncommon cases")
 DEFINE_bool(polymorphic_inlining, true, "polymorphic inlining")
 DEFINE_bool(use_osr, true, "use on-stack replacement")
+DEFINE_bool(idefs, false, "use informative definitions")
 DEFINE_bool(array_bounds_checks_elimination, true,
             "perform array bounds checks elimination")
 DEFINE_bool(array_bounds_checks_hoisting, false,
@@ -310,6 +309,9 @@ DEFINE_int(parallel_recompilation_queue_length, 8,
            "the length of the parallel compilation queue")
 DEFINE_int(parallel_recompilation_delay, 0,
            "artificial compilation delay in ms")
+DEFINE_bool(omit_prototype_checks_for_leaf_maps, true,
+            "do not emit prototype checks if all prototypes have leaf maps, "
+            "deoptimize the optimized code if the layout of the maps changes.")
 DEFINE_bool(omit_map_checks_for_leaf_maps, true,
             "do not emit check maps for constant values that have a leaf map, "
             "deoptimize the optimized code if the layout of the maps changes.")