Remove the global Strength enum class completely.

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
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@@ skipping 105 matching lines @@
   'debug-stepin-call-function-stub': [PASS, NO_VARIANTS],  # only in no-snap debug.
   'debug-stepin-positions': [PASS, NO_VARIANTS],  # only due to inlining.
   'regress/regress-3717': [PASS, NO_VARIANTS],  # only in no-snap mode.
   'regress/regress-2451': [PASS, NO_VARIANTS],  # with custom snapshot and gc-stress.
   'debug-multiple-breakpoints': [PASS, NO_VARIANTS],  # with custom snapshot and gc-stress.
   'debug-listbreakpoints': [PASS, NO_VARIANTS],  # arm64 nosnap with turbofan
   'debug-enable-disable-breakpoints': [PASS, NO_VARIANTS],  #arm64 nosnap with turbofan.
 
   # Issue 3956: Strong mode is deprecating. The expectations inside the
   # following tests should be updated once deprecation is complete.
+  'strong/class-extend-null': [SKIP],
+  'strong/class-literals': [SKIP],
+  'strong/class-object-frozen': [SKIP],
   'strong/destructuring': [SKIP],
+  'strong/functions': [SKIP],
   'strong/implicit-conversions': [SKIP],
   'strong/implicit-conversions-count': [SKIP],
   'strong/implicit-conversions-inlining': [SKIP],
   'strong/load-builtins': [SKIP],
   'strong/load-element': [SKIP],
   'strong/load-element-mutate-backing-store': [SKIP],
   'strong/load-property': [SKIP],
   'strong/load-property-mutate-backing-store': [SKIP],
   'strong/load-super': [SKIP],
   'strong/literals': [SKIP], # Rest arguments do not respect strongness in Turbofan.
@@ skipping 776 matching lines @@
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
   'strong/implicit-conversions': [SKIP],
   'strong/load-element-mutate-backing-store': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]