vim-patch:7.4.601 #1950

Problem:    It is not possible to have feedkeys() insert characters.
  Solution:   Add the 'i' flag.

  https://code.google.com/p/vim/source/detail?r=v7-4-601

runtime/doc/eval.txt

@@ -2959,9 +2959,12 @@ extend({expr1}, {expr2} [, {expr3}])			*extend()*
 
 feedkeys({string} [, {mode}])				*feedkeys()*
 		Characters in {string} are queued for processing as if they
-		come from a mapping or were typed by the user.	They are added
-		to the end of the typeahead buffer, thus if a mapping is still
-		being executed these characters come after them.
+		come from a mapping or were typed by the user.
+		By default the string is added to the end of the typeahead
+		buffer, thus if a mapping is still being executed the
+		characters come after them.  Use the 'i' flag to insert before
+		other characters, they will be executed next, before any
+		characters from a mapping.
 		The function does not wait for processing of keys contained in
 		{string}.
 		To include special keys into {string}, use double-quotes
@@ -2975,6 +2978,7 @@ feedkeys({string} [, {mode}])				*feedkeys()*
 		't'	Handle keys as if typed; otherwise they are handled as
 			if coming from a mapping.  This matters for undo,
 			opening folds, etc.
+		'i'	Insert the string instead of appending (see above).
 		Return value is always 0.
 
 filereadable({file})					*filereadable()*

src/nvim/api/vim.c

@@ -57,6 +57,7 @@ void vim_feedkeys(String keys, String mode, Boolean escape_csi)
   FUNC_ATTR_DEFERRED
 {
   bool remap = true;
+  bool insert = false;
   bool typed = false;
 
   if (keys.size == 0) {
@@ -68,6 +69,7 @@ void vim_feedkeys(String keys, String mode, Boolean escape_csi)
     case 'n': remap = false; break;
     case 'm': remap = true; break;
     case 't': typed = true; break;
+    case 'i': insert = true; break;
     }
   }
 
@@ -80,7 +82,7 @@ void vim_feedkeys(String keys, String mode, Boolean escape_csi)
       keys_esc = keys.data;
   }
   ins_typebuf((char_u *)keys_esc, (remap ? REMAP_YES : REMAP_NONE),
-      typebuf.tb_len, !typed, false);
+      insert ? 0 : typebuf.tb_len, !typed, false);
 
   if (escape_csi) {
       free(keys_esc);

src/nvim/version.c

@@ -179,6 +179,35 @@ static char *(features[]) = {
 
 // clang-format off
 static int included_patches[] = {
+  //620,
+  //619,
+  //618,
+  //617,
+  //616,
+  //615,
+  //614,
+  //613,
+  //612,
+  //611,
+  //610,
+  //609,
+  //608,
+  //607,
+  //606,
+  //605,
+  //604,
+  //603,
+  //602,
+  601,
+  //600,
+  //599,
+  //598,
+  //597,
+  //596,
+  //595,
+  //594,
+  //593,
+  //592,
   //591 NA
   //590,
   //589 NA