public boolean parseFailed() {
		return prototype == null;
	}
@return true if a parse error was detected, otherwise false is returned.
The methods getMaskedBytes() and getInstructionMask() should
only be invoked if this method returns false.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighDebugLogger.java