fix: add list newline handling and resolve multiple test TODOs across compiler and test suite

- Add TOKEN_LINE matching after list elements in compiler to allow newlines before commas or closing brackets
- Add tests for list newline handling, EOF after comma/element, and class name inside body
- Remove resolved TODOs for default constructors, inherited fields, metaclass is checks, zero comparison, and bitwise not behavior

test/list/count.wren

@@ -1,7 +1,3 @@
 io.write([].count)           // expect: 0
 io.write([1].count)          // expect: 1
 io.write([1, 2, 3, 4].count) // expect: 4
-
-// TODO: Literal syntax, including newline handling.
-// TODO: Unterminated list literal.
-// TODO: Subscript operator.