patch 7.4.2082

Problem:    Not much test coverage for digraphs.
Solution:   Add a new style digraph test. (Christian Brabandt)

Author: brammool

src/Makefile

@@ -2061,6 +2061,7 @@ test_arglist \
 	test_cscope \
 	test_cursor_func \
 	test_delete \
+	test_digraph \
 	test_ex_undo \
 	test_execute_func \
 	test_expand \

src/testdir/test_alot.vim

@@ -5,6 +5,7 @@ source test_assign.vim
 source test_autocmd.vim
 source test_cursor_func.vim
 source test_delete.vim
+source test_digraph.vim
 source test_execute_func.vim
 source test_ex_undo.vim
 source test_expand.vim