@Override
		public void add(ProblemLocation location) {
			tableDialog.add(location);
		}
Returns the address of first function called by {@code func}.  That is, the returned {@link Address}
is the target of the call instruction with the least address within the body of {@code func}. 
@param func the {@link Function} to search for calls
@return the {@link Address} of the first called function, or {@code Address.NO_ADDRESS} if
no calls are found.
Ghidra/Features/Decompiler/ghidra_scripts/FindPotentialDecompilerProblems.java