patch 8.2.0267: no check for a following cmd when calling a function fails

Problem:    No check for a following command when calling a function fails.
Solution:   Also check for a following command when inside a try block.
            (closes #5642)

Author: brammool

src/testdir/test_user_func.vim

@@ -162,3 +162,7 @@ endfunc
 func Test_user_method()
   eval 'bar'->s:addFoo()->assert_equal('barfoo')
 endfunc
+
+func Test_failed_call_in_try()
+  try | call UnknownFunc() | catch | endtry
+endfunc

src/userfunc.c

@@ -3554,7 +3554,8 @@ ex_call(exarg_T *eap)
     if (eap->skip)
 	--emsg_skip;
 
-    if (!failed)
+    // When inside :try we need to check for following "| catch".
+    if (!failed || eap->cstack->cs_trylevel > 0)
     {
 	// Check for trailing illegal characters and a following command.
 	if (!ends_excmd(*arg))

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    267,
 /**/
     266,
 /**/