@Override
		public int compareTo(Vertex that) {
			int result;
			result = this.context.compareTo(that.context);
			if (result != 0) {
				return result;
			}
			result = this.subtable.compareTo(that.subtable);
			if (result != 0) {
				return result;
			}
			return 0;
		}
Check if this and another vertex "agree"

<p>
This does not mean they are equal, but that they share a sub-table, and the defined bits
of their context blocks agree.

@param that the other vertex
@return true iff they share sub-tables and defined bits
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/sem/AssemblyContextGraph.java