[pull] master from trinodb:master - #1733
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TRY(expr) desugars to $try(() -> expr), and RemoveRedundantTry drops the $try wrapper when IrExpressions.mayFail judges the body infallible. mayFail classified FieldReference as never failing without inspecting its base, so TRY(array[index].field) lost its wrapper and an out-of-bounds subscript error escaped as INVALID_FUNCTION_ARGUMENT. Visit the base of a FieldReference in mayFail so a fallible base keeps the $try wrapper, while a Reference/Constant base still allows the redundant-try removal.
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