element is one member of an array literal, located inside its container.
OptionalnameAn attribute's name, or an array member's key.
OptionalparentThe id of the array literal this value is a member of.
Present only on element rows. Containment is a reference rather than
nesting so the list stays flat and ordered, and so #239 can point a symbol
at one member without re-walking a tree.
Literal source bytes, quotes included.
Result-local identity for #239's later flow-sensitive references.