after syntax fixes, these tests appear to pass
fixed the test case, hope it's still testing something
fixed this test case too
typestate is not planned for upcoming versions of rust....
fixed up syntax
hard to read the implied double negative
fix for parsing x() as identifier pattern
parser comments
added notes to this test
needs_comma was always true
parser comments
rename parse_class_item to parse_struct_decl_field

two problems with the old name: they're not called classes any more, and
the word "item" has a specific connotation in the parser
rename parse_single_class_item as well
remove obsolete semicolon from list of suggestions
rename parse_instance_var to parse_name_and_ty

the name no longer made sense. perhaps this could just be inlined.
parser comments
remove 3-line used-once function