public List<Address> getAllVftables() {
		return new ArrayList<Address>(vftableToClassMap.keySet());
	}
Method to find the operator delete and operator new functions in the current program 
either by name or by common virtual function calls
@param vftables a list of vftables
@throws CancelledException if cancelled
Ghidra/Features/Decompiler/ghidra_scripts/classrecovery/RecoveredClassHelper.java