Comment 11 for bug 1905512

These are the 62 exported sb-int symbols in quicklisp:

(ATTEMPT-RESYNC AVER BASE-CHAR-CODE-LIMIT BINDING* BIT-VECTOR-=
 BOOTSTRAP-PACKAGE-NOT-FOUND CLEAR-INFO COLLECT CONSTANT-FORM-VALUE
 DEBOOTSTRAP-PACKAGE DEFCONSTANT-EQX DOVECTOR ENCAPSULATE
 ENCAPSULATED-CONDITION ENCAPSULATED-P *EOF-OBJECT* FEATUREP FIXNUMP
 GET-FLOATING-POINT-MODES GLOBAL-FTYPE INDEX INFO KEYWORDICATE LEGAL-FUN-NAME-P
 LIST-OF-LENGTH-AT-LEAST-P MAKE-MACRO-LAMBDA MEMQ MIX &MORE NAMED-LAMBDA
 NAMED-LET ONCE-ONLY PACKAGE-AT-VARIANCE PACKAGE-EXTERNAL-SYMBOL-COUNT
 PACKAGE-INTERNAL-SYMBOL-COUNT *PRINT-CONDITION-REFERENCES*
 PROPER-LIST-OF-LENGTH-P QUASIQUOTE REFERENCE-CONDITION
 REFERENCE-CONDITION-REFERENCES *REPL-PROMPT-FUN* *REPL-READ-FORM-FUN*
 SANE-PACKAGE SET-FLOATING-POINT-MODES SIMPLE-COMPILER-NOTE SIMPLE-FILE-ERROR
 SIMPLE-PARSE-ERROR SIMPLE-PROGRAM-ERROR SIMPLE-READER-ERROR
 SIMPLE-READER-PACKAGE-ERROR SIMPLE-STREAM-ERROR SIMPLE-STYLE-WARNING
 STREAM-DECODING-ERROR STREAM-ENCODING-ERROR STRERROR SYMBOLICATE TYPE-WARNING
 UNENCAPSULATE UNSUPPORTED-OPERATOR VALID-FUNCTION-NAME-P
 WITH-FLOAT-TRAPS-MASKED WITH-UNIQUE-NAMES)

It might be useful to determine which of these, if any, should be officially exposed as part of the SBCL extension API.