patch 8.2.0135: bracketed paste can still cause invalid memory access

Problem:    Bracketed paste can still cause invalid memory access. (Dominique
            Pelle)
Solution:   Check for NULL pointer.

src/edit.c

@@ -4942,7 +4942,7 @@ bracketed_paste(paste_mode_T mode, int drop, garray_T *gap)
     int		save_paste = p_paste;
 
     // If the end code is too long we can't detect it, read everything.
-    if (STRLEN(end) >= NUMBUFLEN)
+    if (end != NULL && STRLEN(end) >= NUMBUFLEN)
 	end = NULL;
     ++no_mapping;
     allow_keys = 0;

src/testdir/test_search.vim

@@ -1451,6 +1451,7 @@ func Test_searchdecl()
 endfunc
 
 func Test_search_special()
-  " this was causing illegal memory access
+  " this was causing illegal memory access and an endless loop
+  set t_PE=
   exe "norm /\x80PS"
 endfunc

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    135,
 /**/
     134,
 /**/