1.0.39.2: Fix symbol-name-conflict resolution test from 1.0.39.1.

  * Before signalling a name-conflict in IMPORT due to a symbol found
previously on the arglist, remove the earlier symbol from the list of
symbols to add to the package (one or the other will be shadowing-imported,
and there's no further check for name collision.

NEWS

@@ -1,4 +1,9 @@
 ;;;; -*- coding: utf-8; fill-column: 78 -*-
+changes relative to sbcl-1.0.39:
+  * bug fix: Name conflicts between symbols passed as arguments to a
+single call to IMPORT no longer add multiple symbols with the same name
+to the package (detectable via DO-SYMBOLS).
+
 changes in sbcl-1.0.39 relative to sbcl-1.0.38:
   * bug fix: Backtrace from undefined function on x86 and x86-64 now show
     the calling frame.

src/code/target-package.lisp

@@ -1116,6 +1116,7 @@ the importation, then a correctable error is signalled."
                    (let ((found (member sym syms :test #'string=)))
                      (if found
                          (when (not (eq (car found) sym))
+                           (setf syms (remove (car found) syms))
                            (name-conflict package 'import sym sym (car found)))
                          (push sym syms))))
                   ((not (eq s sym))

tests/packages.impure.lisp

@@ -248,7 +248,7 @@ if a restart was invoked."
 ;;; Make sure that resolving a name-conflict in IMPORT doesn't leave
 ;;; multiple symbols of the same name in the package (this particular
 ;;; scenario found in 1.0.38.9, but clearly a longstanding issue).
-(with-test (:name import-conflict-resolution :fails-on :sbcl)
+(with-test (:name import-conflict-resolution)
   (with-packages (("FOO" (:export "NIL"))
                   ("BAR" (:use)))
     (with-name-conflict-resolution ((sym "FOO" "NIL"))

version.lisp-expr

@@ -17,4 +17,4 @@
 ;;; checkins which aren't released. (And occasionally for internal
 ;;; versions, especially for internal versions off the main CVS
 ;;; branch, it gets hairier, e.g. "0.pre7.14.flaky4.13".)
-"1.0.39.1"
+"1.0.39.2"