Rebase, regenerate, and update tests

...class/syntax/early-errors/super-private-access-invalid.js

...e/expressions/compound-assignment/add-arguments-strict.js

...nguage/expressions/compound-assignment/add-eval-strict.js

...e/expressions/compound-assignment/and-arguments-strict.js

...nguage/expressions/compound-assignment/and-eval-strict.js

...e/expressions/compound-assignment/div-arguments-strict.js

...nguage/expressions/compound-assignment/div-eval-strict.js

...xpressions/compound-assignment/lshift-arguments-strict.js

...age/expressions/compound-assignment/lshift-eval-strict.js

...e/expressions/compound-assignment/mod-arguments-strict.js

...nguage/expressions/compound-assignment/mod-eval-strict.js

.../expressions/compound-assignment/mult-arguments-strict.js

...guage/expressions/compound-assignment/mult-eval-strict.js

...ge/expressions/compound-assignment/or-arguments-strict.js

...anguage/expressions/compound-assignment/or-eval-strict.js

...pressions/compound-assignment/srshift-arguments-strict.js

...ge/expressions/compound-assignment/srshift-eval-strict.js

...e/expressions/compound-assignment/sub-arguments-strict.js

...nguage/expressions/compound-assignment/sub-eval-strict.js

...pressions/compound-assignment/urshift-arguments-strict.js