Gets the maximum lookahead required for any single LL prediction to
complete for this decision. An LL prediction completes when the algorithm
reaches a unique prediction, a conflict state (for
{@link PredictionMode#LL}), an ambiguity state (for
{@link PredictionMode#LL_EXACT_AMBIG_DETECTION}), or a syntax error.
Gets the maximum lookahead required for any single LL prediction to complete for this decision. An LL prediction completes when the algorithm reaches a unique prediction, a conflict state (for {@link PredictionMode#LL}), an ambiguity state (for {@link PredictionMode#LL_EXACT_AMBIG_DETECTION}), or a syntax error.