patch 8.2.0287: Vim9: return in try block not tested; catch not tested

Problem:    Vim9: return in try block not tested; catch with pattern not
            tested.
Solution:   Add tests.  Make it work.

src/testdir/test_vim9_script.vim

@@ -236,12 +236,40 @@ def CatchInDef()
   endtry
 enddef
 
+def ReturnFinally(): string
+  try
+    return 'intry'
+  finally
+    g:in_finally = 'finally'
+  endtry
+  return 'end'
+enddef
+
 def Test_try_catch_nested()
   CatchInFunc()
   assert_equal('getout', g:thrown_func)
 
   CatchInDef()
   assert_equal('getout', g:thrown_def)
+
+  assert_equal('intry', ReturnFinally())
+  assert_equal('finally', g:in_finally)
+enddef
+
+def Test_try_catch_match()
+  let seq = 'a'
+  try
+    throw 'something'
+  catch /nothing/
+    seq ..= 'x'
+  catch /some/
+    seq ..= 'b'
+  catch /asdf/
+    seq ..= 'x'
+  finally
+    seq ..= 'c'
+  endtry
+  assert_equal('abc', seq)
 enddef
 
 let s:export_script_lines =<< trim END

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    287,
 /**/
     286,
 /**/

src/vim9execute.c

@@ -1065,6 +1065,7 @@ call_def_function(
 		    trycmd->tcd_frame = ectx.ec_frame;
 		    trycmd->tcd_catch_idx = iptr->isn_arg.try.try_catch;
 		    trycmd->tcd_finally_idx = iptr->isn_arg.try.try_finally;
+		    trycmd->tcd_caught = FALSE;
 		}
 		break;
 
@@ -1109,7 +1110,7 @@ call_def_function(
 			--trylevel;
 			trycmd = ((trycmd_T *)trystack->ga_data)
 							    + trystack->ga_len;
-			if (trycmd->tcd_caught)
+			if (trycmd->tcd_caught && current_exception != NULL)
 			{
 			    // discard the exception
 			    if (caught_stack == current_exception)