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/constructor/default.wren

@@ -2,10 +2,7 @@ class Foo {
   toString { return "Foo" }
 }
 
-// A class with no constructors gets an argument-less "new" one by default.
+// Classes inherit the argument-less "new" one by default.
 var foo = new Foo
 io.write(foo is Foo) // expect: true
 io.write(foo.toString) // expect: Foo
-
-// TODO: Test that class doesn't get default constructor if it has an explicit
-// one.