[interpreter] Disable some slow tail call tests.

test/mjsunit/mjsunit.status

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 852 matching lines @@
   'regress/regress-crbug-405922': [SKIP],
   'regress/regress-crbug-409614': [SKIP],
   'regress/regress-crbug-432493': [SKIP],
   'regress/regress-crbug-467180': [SKIP],
   'regress/regress-crbug-568477-2': [SKIP],
   'regress/regress-crbug-481896': [SKIP],
   'regress/regress-crbug-568477-4': [SKIP],
   'regress/regress-debug-deopt-while-recompile': [SKIP],
   'regress/regress-deep-proto': [SKIP],
   'try': [SKIP],
+
+  # Too slow for interpreter and msan.
+  'es6/tail-call-megatest*': [SKIP],
 }],  # ignition == True and msan
 
 ['ignition == False', {
   # Debugger test cases that pass with full-codegen, but not ignition.
   # These differences between full-codegen and ignition are deliberate.
   'ignition/elided-instruction': [FAIL],
 }],  # ignition == False
 
 ##############################################################################
 ['gcov_coverage', {
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]