Merge #10369 from janlazo/vim-8.0.1202

vim-patch:8.0.{1202,1259}

src/nvim/ex_cmds.c

@@ -1939,7 +1939,7 @@ void do_wqall(exarg_T *eap)
   }
 
   FOR_ALL_BUFFERS(buf) {
-    if (!bufIsChanged(buf)) {
+    if (!bufIsChanged(buf) || bt_dontwrite(buf)) {
       continue;
     }
     /*

src/nvim/testdir/shared.vim

@@ -133,7 +133,9 @@ func s:kill_server(cmd)
   endif
 endfunc
 
-" Wait for up to a second for "expr" to become true.
+" Wait for up to a second for "expr" to become true.  "expr" can be a
+" stringified expression to evaluate, or a funcref without arguments.
+"
 " A second argument can be used to specify a different timeout in msec.
 "
 " Return time slept in milliseconds.  With the +reltime feature this can be
@@ -146,8 +148,13 @@ func WaitFor(expr, ...)
   else
     let slept = 0
   endif
+  if type(a:expr) == v:t_func
+    let Test = a:expr
+  else
+    let Test = {-> eval(a:expr) }
+  endif
   for i in range(timeout / 10)
-    if eval(a:expr)
+    if Test()
       if has('reltime')
 	return float2nr(reltimefloat(reltime(start)) * 1000)
       endif

src/nvim/testdir/test_search.vim

@@ -1,5 +1,7 @@
 " Test for the search command
 
+source shared.vim
+
 func Test_search_cmdline()
   " See test/functional/legacy/search_spec.lua
   throw 'skipped: Nvim does not support test_override()'