public HighSymbol getHighSymbol(HighFunction highFunction) {
		return null;
	}
Get the symbol associated with this token or null otherwise.
This token may be directly associated with the symbol or a reference, in which
case the symbol is looked up in the containing HighFunction
@param highFunction is the function
@return HighSymbol
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/ClangToken.java