updated for version 7.4.086

Problem:    Skipping over an expression when not evaluating it does not work
            properly for dict members.
Solution:   Skip over unrecognized expression. (ZyX)

src/eval.c

@@ -19845,23 +19845,29 @@ handle_subscript(arg, rettv, evaluate, verbose)
     while (ret == OK
 	    && (**arg == '['
 		|| (**arg == '.' && rettv->v_type == VAR_DICT)
-		|| (**arg == '(' && rettv->v_type == VAR_FUNC))
+		|| (**arg == '(' && (!evaluate || rettv->v_type == VAR_FUNC)))
 	    && !vim_iswhite(*(*arg - 1)))
     {
 	if (**arg == '(')
 	{
 	    /* need to copy the funcref so that we can clear rettv */
+	    if (evaluate)
+	    {
 		functv = *rettv;
 		rettv->v_type = VAR_UNKNOWN;
 
 		/* Invoke the function.  Recursive! */
 		s = functv.vval.v_string;
+	    }
+	    else
+		s = (char_u *)"";
 	    ret = get_func_tv(s, (int)STRLEN(s), rettv, arg,
 			curwin->w_cursor.lnum, curwin->w_cursor.lnum,
 			&len, evaluate, selfdict);
 
 	    /* Clear the funcref afterwards, so that deleting it while
 	     * evaluating the arguments is possible (see test55). */
+	    if (evaluate)
 		clear_tv(&functv);
 
 	    /* Stop the expression evaluation when immediately aborting on

src/testdir/test34.in

@@ -1,6 +1,7 @@
 Test for user functions.
 Also test an <expr> mapping calling a function.
 Also test that a builtin function cannot be replaced.
+Also test for regression when calling arbitrary expression.
 
 STARTTEST
 :so small.vim
@@ -62,7 +63,17 @@ XX+-XX
 [(one again:call append(line('$'), max([1, 2, 3]))
 :call extend(g:, {'max': function('min')})
 :call append(line('$'), max([1, 2, 3]))
-:$-7,$w! test.out
+:try
+:    " Regression: the first line below used to throw ?E110: Missing ')'?
+:    " Second is here just to prove that this line is correct when not skipping
+:    " rhs of &&.
+:    $put =(0&&(function('tr'))(1, 2, 3))
+:    $put =(1&&(function('tr'))(1, 2, 3))
+:catch
+:    $put ='!!! Unexpected exception:'
+:    $put =v:exception
+:endtry
+:$-9,$w! test.out
 :delfunc Table
 :delfunc Compute
 :delfunc Expr1

src/testdir/test34.ok

@@ -6,3 +6,5 @@ XX111-XX
 1. one again
 3
 3
+0
+1

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    86,
 /**/
     85,
 /**/