public int outermostPrecedenceReturn() {
		return outermostPrecedenceReturn;
	}
@return the rule index of a precedence rule for which this transition is
returning from, where the precedence value is 0; otherwise, -1.

@see ATNConfig#isPrecedenceFilterSuppressed()
@see ParserATNSimulator#applyPrecedenceFilter(ATNConfigSet)
@since 4.4.1
runtime/Java/src/org/antlr/v4/runtime/atn/EpsilonTransition.java