private boolean updateComment() {
			DataTypeComponent dtc = composite.getComponent(ordinal);
			if (hasCommentChange()) {
				dtc.setComment(getNewFieldComment());
			}
			return true;
		}
Sets the pending new datatype and updates the datatype text field to the name of that
datatype.
@param dataType the new pending datatype
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/data/EditDataFieldDialog.java