* Try to fix bug 267 = optimization issue #7: inside
NAMED-LAMBDA replace references to a function with the same
name with self-references;
* ASSERT-GLOBAL-FUNCTION-DEFINITION-TYPE: do not put type
assertions for functions with EXPLICIT-CHECK attribute;
... FLOAT-RADIX does not perform explicit check;
* implement cross-compiler versions of %DPB and %WITH-ARRAY-DATA.