public VectorSTL<OpTpl> newOutput(Location location, boolean usesLocalKey, ExprTree rhs,
			String varname) {
		entry("newOutput", location, rhs, varname);
		return newOutput(location, usesLocalKey, rhs, varname, 0);
	}
Handle a sleigh 'macro' invocation, returning the resulting p-code op templates (OpTpl)

@param location is the file/line where the macro is invoked
@param sym MacroSymbol is the macro symbol
@param param is the parsed list of operand expressions
@return a list of p-code op templates
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/slgh_compile/PcodeCompile.java