Reset nil attributes to their default values to make the spec valid
Parses the most indented lines into blocks that are marked and added to the frontier
def foo(bar: baz); end ^^^^^^^^
if /foo/ then end ^^^^^
if /foo/ then end ^^^^^
def foo(bar: baz); end ^^^^^^^^
if /foo #{bar}/ then end ^^^^^^^^^^^^
foo => bar => baz ^^^^^^^^^^
“foo #@bar” ^^^^^
foo in bar ^^^^^^^^^^
-> { 1 + 2 } ^^^^^^^^^^^^^^
foo => bar => baz ^^^^^^^^^^
"foo #@bar" ^^^^^
foo in bar ^^^^^^^^^^
-> { _1 + _2 } ^^^^^^^^^^^^^^
if /foo #{bar}/ then end ^^^^^^^^^^^^
if /foo #{bar}/ then end ^^^^^^^^^^^^