+/**
+ * @file
+ * @brief Run most simple type analyses.
+ * @author Goetz Lindenmaier
+ * @date 22.8.2003
+ * @version $Id$
+ * @summary
+ * Runs most simple type analyses.
+ *
+ * We compute type information for each node. It is derived from the
+ * types of the origines of values, e.g. parameter types can be derived
+ * from the method type.
+ * The type information so far is saved in the link field.
+ */