public void clearSymbols() {
		for (String symbol : currentSymbols) {
			symbolMap.remove(symbol);
		}
		currentSymbols.clear();
	}
Inject a symbol representing an "operand" to the pcode snippet.

<p>
This puts a placeholder in the resulting template, which gets filled in with the context
specific storage locations when final p-code is generated

@param loc is location information for the operand
@param name of operand symbol
@param index to use for the placeholder
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PcodeParser.java