Add cases for static methods with super

src/class-elements/grammar-static-async-gen-meth-super.case

src/class-elements/grammar-static-async-meth-super.case

src/class-elements/grammar-static-gen-meth-super.case

src/class-elements/grammar-static-get-meth-super.case

src/class-elements/grammar-static-meth-super.case

...elements/grammar-static-private-async-gen-meth-super.case

...ass-elements/grammar-static-private-async-meth-super.case

...class-elements/grammar-static-private-gen-meth-super.case

src/class-elements/grammar-static-private-meth-super.case

src/class-elements/grammar-static-set-meth-super.case