Ensure that the linter's Python dependencies are satisfied in the
continuous integration environment.

Note that this is not currently necessary but only because the linter's
dependencies happen to align with those of the test generation tool. The
dependencies of the two tool should be satisfied explicitly in order to
promote isolation.

Split class fields tags

Class fields with the same name

Fixes #1355 

The tests are explicitly for bad hex chars at certain indexes, and that
rogue `%` was giving false positives.

The change is done in the following patch, where default options
have a null prototype. This matches what other Intl objects have.
https://github.com/tc39/proposal-intl-plural-rules/commit/1abe8af440fb47d888ace701e8a46559bdbe7b06

Added missing cases into BigIntConstructor with String parameters

Fix #1345

Originally discovered by Cait Potter (@caitp), reported in irc.mozilla.org#jslang

- Add tests for multiple public fields of the same name
- Reorganize fields default templates
- Add more tests for redeclaration of fields
- Remove non used template
- Add tests for computed property names in class fields definitions
- Minor test fixes

Thanks @andresaraujo for helping with the early review

* Accessing `ta[0]` throws a TypeError.

* Fix array indices starting at 0 and property references

* Fix classfields templates for properly checking static propnames.

* Generate tests

* `assert.equal` is not defined

* Add missing includes

* Generate tests

* typo s/Avalue/42/

* fix whitespace

* Add missing var for strict mode

* Expand generated class fields tests for forbidden computed property name values

Ref https://github.com/tc39/test262/pull/1339#issuecomment-342830243

* derived classes have access to private names in base classes, if private names are in scope

classfields: Tests for modified algorithms and Private Names

Add tests for setting/defining an element of a typed array to a value, where converting that value to the typed array element type detaches the buffer underlying the typed array. (#1336)

fixup: swap actual and expected in test/built-ins/Promise/prototype/finally/species-symbol.js (#1333)

classfields: add tests duplicate private fields and deleting private fields

classfields: add tests for privatename production and ASI

classfields: add early error tests for privatename references

classfields: add tests for forbidden public/private propertynames

Fix multiple test issues

Changes:

- Changed eval-err-contains-supercall-1.case to add a property access similar to eval-err-contains-supercall-2.case, without this property access eval-err-contains-supercall-1.case would be identical to eval-err-contains-supercall.case.
- Remove unnecessary "earlyerror" and "executionerror" template arguments when the value is already clear from the context.
- Fixed the description in eval-err-contains-supercall-2.case to refer to the correct early error rule.
- Fixed a copy-paste error in eval-err-contains-superproperty-1.case and eval-err-contains-superproperty-2.case.
- Split initializer-eval-super into initializer-eval-super-call and initializer-eval-super-property, because we actually need to test different behaviour for the super-call compared to the super-property case.
- Split initializer-eval into initializer-eval-arguments and initializer-eval-newtarget, because `arguments` and `new.target` are differently handled in class-fields.
- And fixed other copy-paste errors in the template files.

Fixes #1325

Fixes #1313

Fixes #1312

Fixes #1306