private void clearInfo() {
		userDataType = null;
		userPath = null;
		userOffset = 0;
		userName = null;
		initialParent = null;
		initialOffset = 0;
	}
Assuming the parameters have been filled in by the dialog, create the matching TypeDef.
If a new TypeDef is created, or if a pointer to the base DataType already exists as a TypeDef,
set the ComponentOffsetSetting to the value selected by the dialog (userOffset).
@param program is the Program owning the TypeDef
@param tool is the tool showing the dialog
Ghidra/Features/Decompiler/src/main/java/ghidra/app/plugin/core/decompile/actions/CreatePointerRelative.java