Ship ES2015 sloppy-mode function hoisting, let, class

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index ce2e5510d7a4c801281da2fb4cabd1b39c9643ac..a23bf015c12a2359b9d8fe823d528d46d7790dda 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -213,9 +213,6 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
   V(harmony_destructuring_assignment, "harmony destructuring assignment") \
   V(harmony_proxies, "harmony proxies")                                   \
   V(harmony_reflect, "harmony Reflect API")                               \
-  V(harmony_sloppy, "harmony features in sloppy mode")                    \
-  V(harmony_sloppy_let, "harmony let in sloppy mode")                     \
-  V(harmony_sloppy_function, "harmony sloppy function block scoping")     \
   V(harmony_regexp_lookbehind, "harmony regexp lookbehind")
 
 // Features that are shipping (turned on by default, but internal flag remains).
@@ -227,7 +224,10 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
   V(harmony_tolength, "harmony ToLength")                     \
   V(harmony_tostring, "harmony toString")                     \
   V(harmony_completion, "harmony completion value semantics") \
-  V(harmony_regexps, "harmony regular expression extensions")
+  V(harmony_regexps, "harmony regular expression extensions") \
+  V(harmony_sloppy, "harmony features in sloppy mode")        \
+  V(harmony_sloppy_let, "harmony let in sloppy mode")         \
+  V(harmony_sloppy_function, "harmony sloppy function block scoping")
 
 
 // Once a shipping feature has proved stable in the wild, it will be dropped