patch 8.2.3964: some common lisp and scheme files not recognized

Problem:    Some common lisp and scheme files not recognized.
Solution:   Recognize *.asd as lisp and *.sld as scheme. (Alex Vear,
            closes #9447)

runtime/filetype.vim

@@ -963,9 +963,9 @@ au BufNewFile,BufRead lilo.conf			setf lilo
 " Lisp (*.el = ELisp, *.cl = Common Lisp)
 " *.jl was removed, it's also used for Julia, better skip than guess wrong.
 if has("fname_case")
-  au BufNewFile,BufRead *.lsp,*.lisp,*.el,*.cl,*.L,.emacs,.sawfishrc setf lisp
+  au BufNewFile,BufRead *.lsp,*.lisp,*.asd,*.el,*.cl,*.L,.emacs,.sawfishrc setf lisp
 else
-  au BufNewFile,BufRead *.lsp,*.lisp,*.el,*.cl,.emacs,.sawfishrc setf lisp
+  au BufNewFile,BufRead *.lsp,*.lisp,*.asd,*.el,*.cl,.emacs,.sawfishrc setf lisp
 endif
 
 " SBCL implementation of Common Lisp
@@ -1669,7 +1669,7 @@ au BufNewFile,BufRead .zshrc,.zshenv,.zlogin,.zlogout,.zcompdump setf zsh
 au BufNewFile,BufRead *.zsh			setf zsh
 
 " Scheme
-au BufNewFile,BufRead *.scm,*.ss,*.rkt,*.rktd,*.rktl 	setf scheme
+au BufNewFile,BufRead *.scm,*.ss,*.sld,*.rkt,*.rktd,*.rktl 	setf scheme
 
 " Screen RC
 au BufNewFile,BufRead .screenrc,screenrc	setf screen

src/testdir/test_filetype.vim

@@ -286,7 +286,7 @@ let s:filename_checks = {
     \ 'lilo': ['lilo.conf', 'lilo.conf-file'],
     \ 'limits': ['/etc/limits', '/etc/anylimits.conf', '/etc/anylimits.d/file.conf', '/etc/limits.conf', '/etc/limits.d/file.conf', '/etc/some-limits.conf', '/etc/some-limits.d/file.conf', 'any/etc/limits', 'any/etc/limits.conf', 'any/etc/limits.d/file.conf', 'any/etc/some-limits.conf', 'any/etc/some-limits.d/file.conf'],
     \ 'liquid': ['file.liquid'],
-    \ 'lisp': ['file.lsp', 'file.lisp', 'file.el', 'file.cl', '.emacs', '.sawfishrc', 'sbclrc', '.sbclrc'],
+    \ 'lisp': ['file.lsp', 'file.lisp', 'file.asd', 'file.el', 'file.cl', '.emacs', '.sawfishrc', 'sbclrc', '.sbclrc'],
     \ 'lite': ['file.lite', 'file.lt'],
     \ 'litestep': ['/LiteStep/any/file.rc', 'any/LiteStep/any/file.rc'],
     \ 'loginaccess': ['/etc/login.access', 'any/etc/login.access'],
@@ -437,7 +437,7 @@ let s:filename_checks = {
     \ 'sather': ['file.sa'],
     \ 'sbt': ['file.sbt'],
     \ 'scala': ['file.scala', 'file.sc'],
-    \ 'scheme': ['file.scm', 'file.ss', 'file.rkt', 'file.rktd', 'file.rktl'],
+    \ 'scheme': ['file.scm', 'file.ss', 'file.sld', 'file.rkt', 'file.rktd', 'file.rktl'],
     \ 'scilab': ['file.sci', 'file.sce'],
     \ 'screen': ['.screenrc', 'screenrc'],
     \ 'sexplib': ['file.sexp'],

src/version.c

@@ -749,6 +749,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3964,
 /**/
     3963,
 /**/