@Override
		public String toString() {
			return "ctx:" + context + " at " + subtable;
		}
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