Fix 1482 addr wraparound (#1483)

* Add wraparound to `evil-ex-re-fwd` + `evil-ex-re-bwd`

Fixes a bug noted in #1482

* Tests for 1482

Author: tomdl89

evil-ex.el

@@ -814,8 +814,11 @@ Returns the line number of the match."
         (save-excursion
           (set-text-properties 0 (length pattern) nil pattern)
           (evil-move-end-of-line)
-          (and (re-search-forward pattern nil t)
-               (line-number-at-pos (1- (match-end 0))))))
+          (if (re-search-forward pattern nil t)
+              (line-number-at-pos (1- (match-end 0)))
+            (goto-char (point-min))
+            (and (re-search-forward pattern nil t)
+                 (line-number-at-pos (1- (match-end 0)))))))
     (invalid-regexp
      (evil-ex-echo (cadr err))
      nil)))
@@ -828,8 +831,11 @@ Returns the line number of the match."
         (save-excursion
           (set-text-properties 0 (length pattern) nil pattern)
           (evil-move-beginning-of-line)
-          (and (re-search-backward pattern nil t)
-               (line-number-at-pos (match-beginning 0)))))
+          (if (re-search-backward pattern nil t)
+              (line-number-at-pos (match-beginning 0))
+            (goto-char (point-max))
+            (and (re-search-backward pattern nil t)
+                 (line-number-at-pos (match-beginning 0))))))
     (invalid-regexp
      (evil-ex-echo (cadr err))
      nil)))

evil-tests.el

@@ -7846,7 +7846,33 @@ maybe we need one line more with some text\n")
     (evil-test-buffer
       "line1\nline2\nline3\nli[n]e4\nline5\n"
       (":2,4move.")
-      "line1\nline2\nline3\n[l]ine4\nline5\n")))
+      "line1\nline2\nline3\n[l]ine4\nline5\n"))
+  (ert-info ("Move to backwards line, searching forwards (wrapping around)")
+    (evil-test-buffer
+      "
+Target
+Other line
+[S]ource
+"
+      (":move/Target/")
+      "
+Target
+[S]ource
+Other line
+"))
+  (ert-info ("Move to forwards line, searching backwards (wrapping around)")
+    (evil-test-buffer
+      "
+Target
+[O]ther line
+Source
+"
+      (":move?Source?")
+      "
+Target
+Source
+[O]ther line
+")))
 
 (ert-deftest evil-test-write ()
   :tags '(evil ex)

evil-types.el

@@ -380,7 +380,7 @@ If visual state is inactive then those values are nil."
   "Ex line number."
   (list
    (and (evil-ex-p)
-        (let ((expr (evil-ex-parse  evil-ex-argument)))
+        (let ((expr (evil-ex-parse evil-ex-argument)))
           (if (eq (car expr) 'evil-goto-line)
               (save-excursion
                 (goto-char evil-ex-point)