ID of the nonterminal starting at GrammarModule.startNonterminalID.
IDs of the productions starting at GrammarModule.startProductionID. all have to be for the nonterminal with ID nonterminalID.
Location at the start of this subtree.
Location at the end of this subtree.
Childs for this subtree, which were previously also created by createParseTree.
Create a tree node for multiple productions, which are treated as the same. This is used with the generator option --combinedreduce.