@Override
		public StringTree ref() {
			throw new AssertionError();
		}
The virtual fall-through label

<p>
The idea is that no one should ever need to generate labels or gotos to achieve fall-through.
Any attempt to do so probably indicates an implementation error where code generation failed
to place a label.
Ghidra/Features/SystemEmulation/src/main/java/ghidra/pcode/struct/StructuredSleigh.java