@Nonnull
	private String findPriorMemberName(@Nonnull String oldClassName, @Nonnull MemberMapping memberMapping) {
		if (memberMapping.isField()) {
			return findPriorName(memberMapping, getClassFieldMappings(oldClassName));
		} else {
			return findPriorName(memberMapping, getClassMethodMappings(oldClassName));
		}
	}
Updates aggregated mappings with new values.

@param newMappings
		The additional mappings that were added. They will be in the form of {@code b -> c}.
		We need to make sure we map the key type {@code b} to {@code a}.

@return {@code true} when the mapping operation required bridging a current class name to its original name.
recaf-core/src/main/java/software/coley/recaf/services/mapping/aggregate/AggregatedMappings.java