@Override
	public boolean shouldMapLocalVariable(@Nonnull ClassInfo owner, @Nonnull MethodMember declaringMethod, @Nonnull LocalVariable variable) {
		if (aggregate.getReverseVariableMapping(owner.getName(), declaringMethod.getName(),
				declaringMethod.getDescriptor(), variable.getName(), variable.getDescriptor(), variable.getIndex()) != null)
			return false;
		return super.shouldMapLocalVariable(owner, declaringMethod, variable);
	}
@param next
		Next filter to link. Chaining filters allows for {@code thisFilter && nextFilter}.
@param aggregate
		Aggregate mappings instance to use when checking for existing mapping entries.
recaf-core/src/main/java/software/coley/recaf/services/mapping/gen/filter/ExcludeExistingMappedFilter.java