@Override
		public int hashCode() {
			// We only care about the reference hash
			return callingMethod.hashCode();
		}
Models the calling context to some method.

@param callingClass
		Class that defines the calling method.
@param callingMethod
		The calling method information.
@param opcode
		The outgoing call opcode.
@param itf
		The outgoing call {@code isInterface} flag.
recaf-core/src/main/java/software/coley/recaf/services/callgraph/CallGraph.java