public final int getOuterContextDepth() {
		return reachesIntoOuterContext & ~SUPPRESS_PRECEDENCE_FILTER;
	}
This method gets the value of the {@link #reachesIntoOuterContext} field
as it existed prior to the introduction of the
{@link #isPrecedenceFilterSuppressed} method.
runtime/Java/src/org/antlr/v4/runtime/atn/ATNConfig.java