public final ElfSymbol getSymbol(int symbolIndex) {
		if (symbolTable == null) {
			return symbolIndex == 0 ? nullSymbol : null;
		}
		return symbolTable.getSymbol(symbolIndex);
	}
Get the Elf symbol which corresponds to the specified index.  Each relocation table
may correspond to a specific symbol table to which the specified symbolIndex will be
applied.  In the absense of a corresponding symbol table index 0 will return a special 
null symbol.
@param symbolIndex symbol index
@return Elf symbol which corresponds to symbol index or <B>null</B> if out of range
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/relocation/ElfRelocationContext.java