vim-patch:8.2.0672: heredoc in scripts does not accept lower case marker

Problem:    Heredoc in scripts does not accept lower case marker.
Solution:   Allow lower case only in non-Vim scripts. (Ken Takata,
            closes vim/vim#6019)

6ab0953fef

src/nvim/eval/vars.c

@@ -214,7 +214,7 @@ list_T *heredoc_get(exarg_T *eap, char *cmd, bool script_get)
       return NULL;
     }
     *p = NUL;
-    if (islower((uint8_t)(*marker))) {
+    if (!script_get && islower((uint8_t)(*marker))) {
       emsg(_("E221: Marker cannot start with lower case letter"));
       return NULL;
     }

test/old/testdir/test_perl.vim

@@ -311,7 +311,10 @@ VIM::DoCommand('let s ..= "B"')
   perl << trim
     VIM::DoCommand('let s ..= "D"')
   .
-  call assert_equal('ABCD', s)
+  perl << trim eof
+    VIM::DoCommand('let s ..= "E"')
+  eof
+  call assert_equal('ABCDE', s)
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab

test/old/testdir/test_python2.vim

@@ -186,7 +186,10 @@ s+='B'
   python << trim
     s+='D'
   .
-  call assert_equal('ABCD', pyxeval('s'))
+  python << trim eof
+    s+='E'
+  eof
+  call assert_equal('ABCDE', pyxeval('s'))
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab

test/old/testdir/test_python3.vim

@@ -281,7 +281,10 @@ s+='B'
   python3 << trim
     s+='D'
   .
-  call assert_equal('ABCD', pyxeval('s'))
+  python3 << trim eof
+    s+='E'
+  eof
+  call assert_equal('ABCDE', pyxeval('s'))
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab

test/old/testdir/test_pyx2.vim

@@ -94,7 +94,10 @@ result+='B'
   pyx << trim
     result+='D'
   .
-  call assert_equal('ABCD', pyxeval('result'))
+  pyx << trim eof
+    result+='E'
+  eof
+  call assert_equal('ABCDE', pyxeval('result'))
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab

test/old/testdir/test_pyx3.vim

@@ -94,7 +94,10 @@ result+='B'
   pyx << trim
     result+='D'
   .
-  call assert_equal('ABCD', pyxeval('result'))
+  pyx << trim eof
+    result+='E'
+  eof
+  call assert_equal('ABCDE', pyxeval('result'))
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab

test/old/testdir/test_ruby.vim

@@ -428,7 +428,10 @@ Vim.command('let s ..= "B"')
   ruby << trim
     Vim.command('let s ..= "D"')
   .
-  call assert_equal('ABCD', s)
+  ruby << trim eof
+    Vim.command('let s ..= "E"')
+  eof
+  call assert_equal('ABCDE', s)
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab