public Integer put(int fromState, AssemblySymbol next, int newState) {
		return map.put(new TableEntryKey(fromState, next), newState);
	}
Put an entry into the state machine

<p>
<b>NOTE:</b> Generally, if this returns non-null, something is probably wrong with your LR(0)
machine generator

@param fromState the source state
@param next the symbol that is matched
@param newState the destination state
@return the previous value for newState
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/parse/AssemblyParseTransitionTable.java