Problem:    There are two test files for :let.
Solution:   Merge the two files.
https://github.com/vim/vim/commit/fcf8a8743bdecc0ba28037b79b7cb2962de70b1d

N/A patches for version.c:

vim-patch:8.2.0617: new error check triggers in Swedish menu

Problem:    New error check triggers in Swedish menu.
Solution:   Insert backslash. (Mats Tegner, closes vim/vim#5966)
https://github.com/vim/vim/commit/d2662ad2de40e68999198150024531c91fece16c

vim-patch:8.2.0620: error in menu translations

Problem:    Error in menu translations.
Solution:   Insert a backslash before a space.
https://github.com/vim/vim/commit/0d6fe631f75effbfca92a4f61bbc2fab7385af09

vim-patch:8.2.0628: error in menu translations

Problem:    Error in menu translations.
Solution:   Insert a backslash before a space in one more file. (Shun Bai,
            Emir Sari)
https://github.com/vim/vim/commit/e71ebb46a252cd1cdfb075e6014c2b13c580bf3f

Required for patch 8.1.2264.

Problem:    When E734 is given option is still set.
Solution:   Assign NULL to "s". (Christian Brabandt)
https://github.com/vim/vim/commit/2a6a6c3014e728cd01c750b0f60484d4eaf22a8c

Problem:    Assign test fails in the GUI.
Solution:   Skip the test for setting t_k1.
https://github.com/vim/vim/commit/1fb0d49803b4f57025ed6a43b1f5b9eb91524645

vim-patch:8.0.0354

Problem:    Sticky type checking is more annoying than useful.
Solution:   Remove the error for changing a variable type.

https://github.com/vim/vim/commit/f6f32c38bf3319144a84a01a154c8c91939e7acf

Note: There are a bunch of other changes to eval.txt that I believe are
N/A and not related to this patch.