Function parseArithExpr

src/utils/bash/bashParser.ts:4129–4135

(
  P: ParseState,
  stop: string,
  mode: ArithMode = 'var',
)

])

function parseArithExpr(
  P: ParseState,
  stop: string,
  mode: ArithMode = 'var',
): TsNode | null {
  return parseArithTernary(P, stop, mode)
}

/** Top-level: comma-separated list. arithmetic_expansion emits multiple children. */
function parseArithCommaList(