[esnext] prototype runtime implementation for async functions

test/mjsunit/mjsunit.status

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 #     * Redistributions of source code must retain the above copyright
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@@ skipping 37 matching lines @@
 
   # Issue 3784: setters-on-elements is flaky
   'setters-on-elements': [PASS, FAIL],
 
   # Issue 3641: The new 'then' semantics suppress some exceptions.
   # These tests may be changed or removed when 'chain' is deprecated.
   'es6/debug-promises/reject-with-throw-in-reject': [FAIL],
   'es6/debug-promises/reject-with-undefined-reject': [FAIL],
   'es6/debug-promises/reject-with-invalid-reject': [FAIL],
 
+  # TODO(caitp): fix super-call and super-property in async arrow functions
+  'harmony/async-arrow-lexical-super': [FAIL],
+
   ##############################################################################
   # TurboFan compiler failures.
 
   # TODO(verwaest): Some tests are over-restrictive about object layout.
   'array-constructor-feedback': [PASS, NO_VARIANTS],
   'array-feedback': [PASS, NO_VARIANTS],
   'compare-known-objects-slow': [PASS, NO_VARIANTS],
   'elements-kind': [PASS, NO_VARIANTS],
   'opt-elements-kind': [PASS, NO_VARIANTS],
   'smi-representation': [PASS, NO_VARIANTS],
@@ skipping 872 matching lines @@
 ##############################################################################
 ['gcov_coverage', {
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]