private static int findExplicitReturnStoragePtrParameter(List<? extends Variable> params) {
		for (int i = 0; i < params.size(); i++) {
			Variable p = params.get(i);
			if (RETURN_PTR_PARAM_NAME.equals(p.getName()) && (p.getDataType() instanceof Pointer)) {
				return i;
			}
		}
		return -1;
	}
Remove 'this' parameter if using __thiscall and first non-auto parameter is
a pointer and named 'this'.  Variables must be pre-loaded.
@return true if 'this' parameter removed
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/function/FunctionDB.java