patch 8.2.3085: JSONC files are not recognized

Problem:    JSONC files are not recognized.
Solution:   Recognize .jsonc files. (Izhak Jakov, closes #8500)
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index e38bc23..952a9a6 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -868,6 +868,9 @@
 " Jupyter Notebook is also json
 au BufNewFile,BufRead *.ipynb				setf json
 
+" JSONC
+au BufNewFile,BufRead *.jsonc			setf jsonc
+
 " Kixtart
 au BufNewFile,BufRead *.kix			setf kix
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 50293e5..b0eb4af 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -260,6 +260,7 @@
     \ 'jovial': ['file.jov', 'file.j73', 'file.jovial'],
     \ 'jproperties': ['file.properties', 'file.properties_xx', 'file.properties_xx_xx', 'some.properties_xx_xx_file'],
     \ 'json': ['file.json', 'file.jsonp', 'file.json-patch', 'file.webmanifest', 'Pipfile.lock', 'file.ipynb'],
+    \ 'jsonc': ['file.jsonc'],
     \ 'jsp': ['file.jsp'],
     \ 'kconfig': ['Kconfig', 'Kconfig.debug', 'Kconfig.file'],
     \ 'kivy': ['file.kv'],
diff --git a/src/version.c b/src/version.c
index db88afd..70c1b6b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3085,
+/**/
     3084,
 /**/
     3083,