Problem: Using \{xxx} for encoding a modifier is not nice.
Solution: Use \<*xxx> instead, since it's the same as \<xxx> but producing a
different code.
fccd93f091
Use this notation in langmap_spec.
Problem: GUI tests fail because the test doesn't use a modifier.
Solution: Add "\{xxx}" to be able to encode a modifier.
ebe9d34aa0
Change macros to enums to use them in unit tests.
Problem: Some test failures don't give a clear error.
Solution: Use assert_match() and assert_fails() instead of assert_true().
(Ken Takata, closesvim/vim#7368)
5dc4e2f883
Problem: No 'backspace' value allows ignoring the insertion point.
Solution: Add the "nostop" and 3 values. (Christian Brabandt, closesvim/vim#5940)
aa0489e12d
Porting it to test/functional/legacy/backspace_opt_spec.lua
was a mistake.
Tests pass after commenting out some lines for Vi compatibility.
File is copied from Vim as of patch v8.2.0540.
Patch v8.2.0540 cannot be fully ported yet.
This file is a prequisite for future v8.2.x patches.
