Create optimized versions of the Map/Set clear method

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 867bd196a8dcbcb13eb961cec2d3f35fcca7dadf..02a22e75ddec03f95d48974a50d83c7c3140215d 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -299,17 +299,11 @@ namespace internal {
   F(GetConstructTrap, 1, 1)                            \
   F(Fix, 1, 1)                                         \
                                                        \
-  /* Harmony sets */                                   \
-  F(SetClear, 1, 1)                                    \
-                                                       \
+  /* ES6 collection iterators */                       \
   F(SetIteratorInitialize, 3, 1)                       \
   F(SetIteratorClone, 1, 1)                            \
   F(SetIteratorNext, 2, 1)                             \
   F(SetIteratorDetails, 1, 1)                          \
-                                                       \
-  /* Harmony maps */                                   \
-  F(MapClear, 1, 1)                                    \
-                                                       \
   F(MapIteratorInitialize, 3, 1)                       \
   F(MapIteratorClone, 1, 1)                            \
   F(MapIteratorNext, 2, 1)                             \
@@ -720,6 +714,7 @@ namespace internal {
   F(MathSqrtRT, 1, 1)                     \
   F(MathLogRT, 1, 1)                      \
   /* ES6 Collections */                   \
+  F(MapClear, 1, 1)                       \
   F(MapDelete, 2, 1)                      \
   F(MapGet, 2, 1)                         \
   F(MapGetSize, 1, 1)                     \
@@ -727,6 +722,7 @@ namespace internal {
   F(MapInitialize, 1, 1)                  \
   F(MapSet, 3, 1)                         \
   F(SetAdd, 2, 1)                         \
+  F(SetClear, 1, 1)                       \
   F(SetDelete, 2, 1)                      \
   F(SetGetSize, 1, 1)                     \
   F(SetHas, 2, 1)                         \