Reland of "[Proxies] Ship Proxies + Reflect."

Failing chromium layout tests were marked for rebaselining.

Addition to original CL (https://codereview.chromium.org/1580693002/):
Skip some more ignition tests.

BUG=v8:3931,v8:1543
LOG=Y
R=hablich@chromium.org
CC=verwaest@chromium.org, rossberg@chromium.org,rmcilroy, oth

Review URL: https://codereview.chromium.org/1580783002

Cr-Commit-Position: refs/heads/master@{#33244}

src/flag-definitions.h

@@ -210,8 +210,6 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
 
 // Features that are complete (but still behind --harmony/es-staging flag).
 #define HARMONY_STAGED(V)                                                 \
-  V(harmony_proxies, "harmony proxies")                                   \
-  V(harmony_reflect, "harmony Reflect API")                               \
   V(harmony_regexp_lookbehind, "harmony regexp lookbehind")
 
 // Features that are shipping (turned on by default, but internal flag remains).
@@ -227,7 +225,9 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
   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")
+  V(harmony_sloppy_function, "harmony sloppy function block scoping")     \
+  V(harmony_proxies, "harmony proxies")                                   \
+  V(harmony_reflect, "harmony Reflect API")
 
 
 // Once a shipping feature has proved stable in the wild, it will be dropped

test/cctest/cctest.status

@@ -543,6 +543,8 @@
   'test-log-stack-tracer/JsEntrySp': [SKIP],
   'test-log-stack-tracer/PureCStackTrace': [SKIP],
   'test-log-stack-tracer/PureJSStackTrace': [SKIP],
+  'test-parsing/DestructuringAssignmentNegativeTests': [SKIP],
+  'test-parsing/DestructuringNegativeTests': [SKIP],
   'test-parsing/LanguageModeDirectivesNonSimpleParameterListErrors': [SKIP],
   'test-parsing/StrongModeFreeVariablesDeclaredByLanguage': [SKIP],
   'test-parsing/StrongModeFreeVariablesDeclaredByPreviousScript': [SKIP],

test/mjsunit/mjsunit.status

@@ -1122,6 +1122,7 @@
   'regress/regress-copy-hole-to-field': [SKIP],
   'regress/regress-crbug-315252': [SKIP],
   'regress/regress-crbug-412215': [SKIP],
+  'regress/regress-crbug-513507': [SKIP],
   'regress/regress-deopt-store-effect': [SKIP],
   'regress/regress-undefined-store-keyed-fast-element': [SKIP],
   'regress/typed-array-lifetime': [SKIP],