public int getExtendedSectionHeaderIndex() {
		return symbolTable != null ? symbolTable.getExtendedSectionIndex(this) : 0;
	}
Get the extended symbol section index value when <code>st_shndx</code>
({@link #getSectionHeaderIndex()}) has a value of SHN_XINDEX.  This requires a lookup
into a table defined by an associated SHT_SYMTAB_SHNDX section.
@return extended symbol section index value
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfSymbol.java