public Collection<P> productionsOf(AssemblyNonTerminal nt) {
		return productionsOf(nt.getName());
	}
Get all productions where the left-hand side is the given non-terminal

@param nt the non-terminal whose defining productions to find
@return all productions "defining" the given non-terminal
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/grammars/AbstractAssemblyGrammar.java