Add ftplugin file for fish

Author: bergercookie

ftplugin/common/sh_like.vim

@@ -12,5 +12,3 @@ function! DebugStringFunShellBase(desc, ...)
     let l:debug_str .= '"'
     return l:debug_str
 endfunc
-
-

ftplugin/fish.vim

@@ -0,0 +1,15 @@
+let g:path = fnamemodify(resolve(expand('<sfile>:p')), ':h')
+
+function! s:DebugStringFun(desc, ...)
+    let l:debug_str = 'echo "' . a:desc
+    if len(a:000) ==# 1
+        let l:debug_str .= ' $' . a:1
+    endif
+    let l:debug_str .= '"'
+    return l:debug_str
+endfunc
+
+command! -buffer -nargs=0 AddDebugString
+            \ put=s:DebugStringFun(g:DebugstringPrefixStr() . g:debugStringCounter)
+command! -buffer -nargs=1 AddDebugStringExpr
+            \ put=s:DebugStringFun(<args> . ': ', <args>)