[rust-compiler] Fix remaining snap failures — 1717/1718 passing

FBT loc propagation on identifier/place/declarator/JSXAttribute nodes,
component/hook declaration syntax via __componentDeclaration and
__hookDeclaration AST fields, 13 missing BuiltInMixedReadonly methods,
identifierName in effect-derived-computation diagnostics, and
ValidateSourceLocations skip. Only remaining failure is the intentional
error.todo-missing-source-locations (pass not ported to Rust).