vim-patch:8.2.4701: Kuka Robot Language files not recognized (#18012)

Problem:    Kuka Robot Language files not recognized.
Solution:   Recognize *.src and *.dat files. (Patrick Meiser-Knosowski,
            closes vim/vim#10096)
3ad2090316

runtime/autoload/dist/ft.vim

@@ -899,6 +899,23 @@ func dist#ft#FTtf()
   setf tf
 endfunc
 
+" Determine if a *.src file is Kuka Robot Language
+func dist#ft#FTsrc()
+  if exists("g:filetype_src")
+    exe "setf " .. g:filetype_src
+  elseif getline(nextnonblank(1)) =~? '^\s*\%(&\w\+\|\%(global\s\+\)\?def\>\)'
+    setf krl
+  endif
+endfunc
+
+" Determine if a *.dat file is Kuka Robot Language
+func dist#ft#FTdat()
+  if exists("g:filetype_dat")
+    exe "setf " .. g:filetype_dat
+  elseif getline(nextnonblank(1)) =~? '^\s*\%(&\w\+\|defdat\>\)'
+    setf krl
+  endif
+endfunc
 
 " Restore 'cpoptions'
 let &cpo = s:cpo_save

runtime/filetype.vim

@@ -947,6 +947,11 @@ au BufNewFile,BufRead *.jl			setf julia
 " Kixtart
 au BufNewFile,BufRead *.kix			setf kix
 
+" Kuka Robot Language
+au BufNewFile,BufRead *.src\c			call dist#ft#FTsrc()
+au BufNewFile,BufRead *.dat\c			call dist#ft#FTdat()
+au BufNewFile,BufRead *.sub\c			setf krl
+
 " Kimwitu[++]
 au BufNewFile,BufRead *.k			setf kwt
 

runtime/lua/vim/filetype.lua

@@ -1427,6 +1427,9 @@ local pattern = {
       return "git"
     end
   end,
+  [".*%.[Dd][Aa][Tt]"] = function() vim.fn["dist#ft#FTdat"]() end,
+  [".*%.[Ss][Rr][Cc]"] = function() vim.fn["dist#ft#FTsrc"]() end,
+  [".*%.[Ss][Uu][Bb]"] = "krl",
   -- Neovim only
   [".*/queries/.*%.scm"] = "query", -- tree-sitter queries
   -- END PATTERN