vim-patch:7.4.1006 #4605

Problem:    The fix in patch 7.3.192 is not tested.
Solution:   Add a test, one for each regexp engine. (Elias Diem)

96c664af27

The patch was applied to 044_099_regexp_multibyte_magic_spec.lua as
these two legacy tests (44 and 99) were merged together (and
de-duplicated) in Neovim.

src/nvim/version.c

@@ -671,7 +671,7 @@ static int included_patches[] = {
   // 1009 NA
   // 1008 NA
   // 1007,
-  // 1006,
+  1006,
   // 1005,
   // 1004 NA,
   // 1003 NA,