vim-patch:8.1.1308: the Normal highlight is not defined when compiled with GUI

Problem:    The Normal highlight is not defined when compiled with GUI.
Solution:   Always define Normal. (Christian Brabandt, closes vim/vim#4072)
f90b6e03a9

runtime/doc/syntax.txt

@@ -4920,6 +4920,8 @@ Conceal		placeholder characters substituted for concealed
 		text (see 'conceallevel')
 							*hl-Cursor*
 Cursor		character under the cursor
+lCursor		the character under the cursor when |language-mapping|
+		is used (see 'guicursor')
 							*hl-CursorIM*
 CursorIM	like Cursor, but used when in IME mode |CursorIM|
 							*hl-CursorColumn*

src/nvim/syntax.c

@@ -5959,6 +5959,7 @@ static const char *highlight_init_both[] = {
   "IncSearch    cterm=reverse gui=reverse",
   "ModeMsg      cterm=bold gui=bold",
   "NonText      ctermfg=Blue gui=bold guifg=Blue",
+  "Normal       cterm=NONE gui=NONE",
   "PmenuSbar    ctermbg=Grey guibg=Grey",
   "StatusLine   cterm=reverse,bold gui=reverse,bold",
   "StatusLineNC cterm=reverse gui=reverse",
@@ -6010,7 +6011,6 @@ static const char *highlight_init_light[] = {
   "Title        ctermfg=DarkMagenta gui=bold guifg=Magenta",
   "Visual       guibg=LightGrey",
   "WarningMsg   ctermfg=DarkRed guifg=Red",
-  "Normal       gui=NONE",
   NULL
 };
 
@@ -6044,7 +6044,6 @@ static const char *highlight_init_dark[] = {
   "Title        ctermfg=LightMagenta gui=bold guifg=Magenta",
   "Visual       guibg=DarkGrey",
   "WarningMsg   ctermfg=LightRed guifg=Red",
-  "Normal       gui=NONE",
   NULL
 };
 

src/nvim/testdir/test_highlight.vim

@@ -591,3 +591,10 @@ func Test_cursorline_with_visualmode()
   call StopVimInTerminal(buf)
   call delete('Xtest_cursorline_with_visualmode')
 endfunc
+
+func Test_1_highlight_Normalgroup_exists()
+  " This test must come before the Test_cursorline test, as it appears this
+  " defines the Normal highlighting group anyway.
+  let hlNormal = HighlightArgs('Normal')
+  call assert_match('hi Normal\s*clear', hlNormal)
+endfunc

test/functional/ui/screen_basic_spec.lua

@@ -987,7 +987,7 @@ describe('Screen default colors', function()
   it('can be set to light', function()
     startup(true, false)
     screen:expect{condition=function()
-      eq({rgb_bg=Screen.colors.White, rgb_fg=0, rgb_sp=Screen.colors.Red,
+      eq({rgb_fg=Screen.colors.White, rgb_bg=0, rgb_sp=Screen.colors.Red,
           cterm_bg=0, cterm_fg=0}, screen.default_colors)
     end}
   end)