protected DIECreator newInherit(DebugInfoEntry parentStruct, DebugInfoEntry dataType,
			int offset) {
		assertTrue(
			dataType == null || dataType.getCompilationUnit() == parentStruct.getCompilationUnit());
		ensureCompUnit();
		DIECreator field = new DIECreator(dwarfProg, DW_TAG_inheritance) //
				.addRef(DW_AT_type, dataType)
				.addInt(DW_AT_data_member_location, offset)
				.setParent(parentStruct);
		return field;
	}
Base class for unit tests needing DWARF DIEs.  Provides 2 DWARF compile-units and helper
methods to create DIE records.
Ghidra/Features/Base/src/test/java/ghidra/app/util/bin/format/dwarf/DWARFTestBase.java