stub Str.match

Author: gfldex

doc/Type/Str.pod6

@@ -162,6 +162,12 @@ Examples:
     say rindex "Camelia is a butterfly", "a";     # 11
     say rindex "Camelia is a butterfly", "a", 10; # 6
 
+=head2 method match
+
+    method match($pat, :continue(:$c), :pos(:$p), :global(:$g), :overlap(:$ov), :exhaustive(:$ex), :st(:$nd), :rd(:$th), :$nth, :$x) return Match
+
+TODO
+
 =head2 routine split
 
 =for code :skip-test