public ConstructState getRootState() {
		return rootState;
	}
Reconstruct the ParserContext's internal packed context array and its list of global 
ContextSet directives by walking a previously resolved ConstructState tree

@param protoContext is the SleighParserContext containing the tree and holding the context
  results
@param debug (optional) logger for collecting information about the recovered context
@throws MemoryAccessException if memory errors occur trying to recover context
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighInstructionPrototype.java