vim-patch:8.0.0218 (#7529)

Problem:    No command line completion for :cexpr, :cgetexpr, :caddexpr, etc.
Solution:   Make completion work. (Yegappan Lakshmanan)  Add a test.

2b2207ba69

src/nvim/version.c

@@ -886,7 +886,7 @@ static const int included_patches[] = {
   // 221 NA
   // 220,
   219,
-  // 218,
+  218,
   // 217 NA
   // 216,
   // 215,