diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 5ece652..1ec3c6f 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -9,6 +9,12 @@
   call delete('Xdef')
 endfunc
 
+func CheckDefFailureMult(lines, error)
+  call writefile(['def! Func()'] + a:lines + ['enddef'], 'Xdef')
+  call assert_fails('so Xdef', a:error, join(a:lines, ' | '))
+  call delete('Xdef')
+endfunc
+
 " Check that "line" inside ":def" results in an "error" message when executed.
 func CheckDefExecFailure(line, error)
   call writefile(['def! Func()', a:line, 'enddef'], 'Xdef')
@@ -805,6 +811,8 @@
   call CheckDefExecFailure("let x = +g:ablob", 'E974:')
   call CheckDefExecFailure("let x = +g:alist", 'E745:')
   call CheckDefExecFailure("let x = +g:adict", 'E728:')
+
+  call CheckDefFailureMult(["let x = ''", "let y = x.memb"], 'E715:')
 endfunc
 
 let g:Funcrefs = [function('add')]
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index f1b21d4..ac8bd75 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -53,6 +53,10 @@
   let dict4: dict<any> = #{one: 1, two: '2'}
   let dict5: dict<blob> = #{one: 0z01, tw: 0z02}
 
+  if has('channel')
+    let chan1: channel
+  endif
+
   g:newvar = 'new'
   assert_equal('new', g:newvar)
 
@@ -91,6 +95,21 @@
 
   call CheckDefFailure(['let var = feedkeys("0")'], 'E1031:')
   call CheckDefFailure(['let var: number = feedkeys("0")'], 'expected number but got void')
+
+  call CheckDefFailure(['let var: dict <number>'], 'E1007:')
+  call CheckDefFailure(['let var: dict<number'], 'E1009:')
+
+  call CheckDefFailure(['let var: ally'], 'E1010:')
+  call CheckDefFailure(['let var: bram'], 'E1010:')
+  call CheckDefFailure(['let var: cathy'], 'E1010:')
+  call CheckDefFailure(['let var: dom'], 'E1010:')
+  call CheckDefFailure(['let var: freddy'], 'E1010:')
+  call CheckDefFailure(['let var: john'], 'E1010:')
+  call CheckDefFailure(['let var: larry'], 'E1010:')
+  call CheckDefFailure(['let var: ned'], 'E1010:')
+  call CheckDefFailure(['let var: pam'], 'E1010:')
+  call CheckDefFailure(['let var: sam'], 'E1010:')
+  call CheckDefFailure(['let var: vim'], 'E1010:')
 endfunc
 
 func Test_const()
@@ -203,6 +222,12 @@
   assert_equal('one,two,three', MyDefVarargs('one', 'two', 'three'))
 enddef
 
+def Test_using_var_as_arg()
+  call writefile(['def Func(x: number)',  'let x = 234', 'enddef'], 'Xdef')
+  call assert_fails('so Xdef', 'E1006:')
+  call delete('Xdef')
+enddef
+
 def Test_call_func_defined_later()
   call assert_equal('one', DefinedLater('one'))
   call assert_fails('call NotDefined("one")', 'E117:')
diff --git a/src/version.c b/src/version.c
index 23c4508..06b9511 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    336,
+/**/
     335,
 /**/
     334,
diff --git a/src/vim9.h b/src/vim9.h
index 77bf626..3a09c0f 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -39,14 +39,18 @@
     ISN_STORENR,    // store number into local variable isn_arg.storenr.str_idx
 
     // constants
-    ISN_PUSHNR,	    // push number isn_arg.number
-    ISN_PUSHBOOL,   // push bool value isn_arg.number
-    ISN_PUSHSPEC,   // push special value isn_arg.number
-    ISN_PUSHF,	    // push float isn_arg.fnumber
-    ISN_PUSHS,	    // push string isn_arg.string
-    ISN_PUSHBLOB,   // push blob isn_arg.blob
-    ISN_NEWLIST,    // push list from stack items, size is isn_arg.number
-    ISN_NEWDICT,    // push dict from stack items, size is isn_arg.number
+    ISN_PUSHNR,		// push number isn_arg.number
+    ISN_PUSHBOOL,	// push bool value isn_arg.number
+    ISN_PUSHSPEC,	// push special value isn_arg.number
+    ISN_PUSHF,		// push float isn_arg.fnumber
+    ISN_PUSHS,		// push string isn_arg.string
+    ISN_PUSHBLOB,	// push blob isn_arg.blob
+    ISN_PUSHFUNC,	// push func isn_arg.string
+    ISN_PUSHPARTIAL,	// push partial ?
+    ISN_PUSHCHANNEL,	// push channel isn_arg.channel
+    ISN_PUSHJOB,	// push channel isn_arg.job
+    ISN_NEWLIST,	// push list from stack items, size is isn_arg.number
+    ISN_NEWDICT,	// push dict from stack items, size is isn_arg.number
 
     // function call
     ISN_BCALL,	    // call builtin function isn_arg.bfunc
@@ -209,6 +213,8 @@
 #ifdef FEAT_FLOAT
 	float_T		    fnumber;
 #endif
+	channel_T	    *channel;
+	job_T		    *job;
 	jump_T		    jump;
 	forloop_T	    forloop;
 	try_T		    try;
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 35f20c4..a4525ca 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -642,6 +642,38 @@
 }
 
 /*
+ * Generate an ISN_PUSHCHANNEL instruction.
+ * Consumes "channel".
+ */
+    static int
+generate_PUSHCHANNEL(cctx_T *cctx, channel_T *channel)
+{
+    isn_T	*isn;
+
+    if ((isn = generate_instr_type(cctx, ISN_PUSHCHANNEL, &t_channel)) == NULL)
+	return FAIL;
+    isn->isn_arg.channel = channel;
+
+    return OK;
+}
+
+/*
+ * Generate an ISN_PUSHJOB instruction.
+ * Consumes "job".
+ */
+    static int
+generate_PUSHJOB(cctx_T *cctx, job_T *job)
+{
+    isn_T	*isn;
+
+    if ((isn = generate_instr_type(cctx, ISN_PUSHCHANNEL, &t_channel)) == NULL)
+	return FAIL;
+    isn->isn_arg.job = job;
+
+    return OK;
+}
+
+/*
  * Generate an ISN_PUSHBLOB instruction.
  * Consumes "blob".
  */
@@ -658,6 +690,22 @@
 }
 
 /*
+ * Generate an ISN_PUSHFUNC instruction with name "name".
+ * Consumes "name".
+ */
+    static int
+generate_PUSHFUNC(cctx_T *cctx, char_u *name)
+{
+    isn_T	*isn;
+
+    if ((isn = generate_instr_type(cctx, ISN_PUSHFUNC, &t_func_void)) == NULL)
+	return FAIL;
+    isn->isn_arg.string = name;
+
+    return OK;
+}
+
+/*
  * Generate an ISN_STORE instruction.
  */
     static int
@@ -3549,10 +3597,11 @@
 		generate_PUSHBLOB(cctx, NULL);
 		break;
 	    case VAR_FUNC:
-		// generate_PUSHS(cctx, NULL); TODO
+		generate_PUSHFUNC(cctx, NULL);
 		break;
 	    case VAR_PARTIAL:
-		// generate_PUSHS(cctx, NULL); TODO
+		// generate_PUSHPARTIAL(cctx, NULL);
+		emsg("Partial type not supported yet");
 		break;
 	    case VAR_LIST:
 		generate_NEWLIST(cctx, 0);
@@ -3561,10 +3610,10 @@
 		generate_NEWDICT(cctx, 0);
 		break;
 	    case VAR_JOB:
-		// generate_PUSHS(cctx, NULL); TODO
+		generate_PUSHJOB(cctx, NULL);
 		break;
 	    case VAR_CHANNEL:
-		// generate_PUSHS(cctx, NULL); TODO
+		generate_PUSHCHANNEL(cctx, NULL);
 		break;
 	    case VAR_NUMBER:
 	    case VAR_UNKNOWN:
@@ -4748,6 +4797,7 @@
     int		called_emsg_before = called_emsg;
     int		ret = FAIL;
     sctx_T	save_current_sctx = current_sctx;
+    int		emsg_before = called_emsg;
 
     if (ufunc->uf_dfunc_idx >= 0)
     {
@@ -4828,7 +4878,8 @@
 	    ++line;
 	else if (line != NULL && *line != NUL)
 	{
-	    semsg(_("E488: Trailing characters: %s"), line);
+	    if (emsg_before == called_emsg)
+		semsg(_("E488: Trailing characters: %s"), line);
 	    goto erret;
 	}
 	else
@@ -4844,6 +4895,7 @@
 		break;
 	    SOURCING_LNUM = ufunc->uf_script_ctx.sc_lnum + cctx.ctx_lnum + 1;
 	}
+	emsg_before = called_emsg;
 
 	had_return = FALSE;
 	vim_memset(&ea, 0, sizeof(ea));
@@ -5153,6 +5205,7 @@
 	case ISN_PUSHS:
 	case ISN_STOREENV:
 	case ISN_STOREG:
+	case ISN_PUSHFUNC:
 	    vim_free(isn->isn_arg.string);
 	    break;
 
@@ -5169,6 +5222,18 @@
 	    blob_unref(isn->isn_arg.blob);
 	    break;
 
+	case ISN_PUSHPARTIAL:
+	    // TODO
+	    break;
+
+	case ISN_PUSHJOB:
+	    job_unref(isn->isn_arg.job);
+	    break;
+
+	case ISN_PUSHCHANNEL:
+	    channel_unref(isn->isn_arg.channel);
+	    break;
+
 	case ISN_UCALL:
 	    vim_free(isn->isn_arg.ufunc.cuf_name);
 	    break;
diff --git a/src/vim9execute.c b/src/vim9execute.c
index 5c5fcb1..9d187c4 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -840,6 +840,10 @@
 	    case ISN_PUSHF:
 	    case ISN_PUSHS:
 	    case ISN_PUSHBLOB:
+	    case ISN_PUSHFUNC:
+	    case ISN_PUSHPARTIAL:
+	    case ISN_PUSHCHANNEL:
+	    case ISN_PUSHJOB:
 		if (ga_grow(&ectx.ec_stack, 1) == FAIL)
 		    goto failed;
 		tv = STACK_TV_BOT(0);
@@ -867,6 +871,29 @@
 		    case ISN_PUSHBLOB:
 			blob_copy(iptr->isn_arg.blob, tv);
 			break;
+		    case ISN_PUSHFUNC:
+			tv->v_type = VAR_FUNC;
+			tv->vval.v_string = vim_strsave(iptr->isn_arg.string);
+			break;
+		    case ISN_PUSHPARTIAL:
+			tv->v_type = VAR_UNKNOWN;
+			break;
+		    case ISN_PUSHCHANNEL:
+#ifdef FEAT_JOB_CHANNEL
+			tv->v_type = VAR_CHANNEL;
+			tv->vval.v_channel = iptr->isn_arg.channel;
+			if (tv->vval.v_channel != NULL)
+			    ++tv->vval.v_channel->ch_refcount;
+#endif
+			break;
+		    case ISN_PUSHJOB:
+#ifdef FEAT_JOB_CHANNEL
+			tv->v_type = VAR_JOB;
+			tv->vval.v_job = iptr->isn_arg.job;
+			if (tv->vval.v_job != NULL)
+			    ++tv->vval.v_job->jv_refcount;
+#endif
+			break;
 		    default:
 			tv->v_type = VAR_STRING;
 			tv->vval.v_string = vim_strsave(iptr->isn_arg.string);
@@ -1846,6 +1873,36 @@
 		    vim_free(tofree);
 		}
 		break;
+	    case ISN_PUSHFUNC:
+		smsg("%4d PUSHFUNC \"%s\"", current, iptr->isn_arg.string);
+		break;
+	    case ISN_PUSHPARTIAL:
+		// TODO
+		smsg("%4d PUSHPARTIAL", current);
+		break;
+	    case ISN_PUSHCHANNEL:
+#ifdef FEAT_JOB_CHANNEL
+		{
+		    channel_T *channel = iptr->isn_arg.channel;
+
+		    smsg("%4d PUSHCHANNEL %d", current,
+					 channel == NULL ? 0 : channel->ch_id);
+		}
+#endif
+		break;
+	    case ISN_PUSHJOB:
+#ifdef FEAT_JOB_CHANNEL
+		{
+		    typval_T	tv;
+		    char_u	*name;
+
+		    tv.v_type = VAR_JOB;
+		    tv.vval.v_job = iptr->isn_arg.job;
+		    name = tv_get_string(&tv);
+		    smsg("%4d PUSHJOB %s", current, name);
+		}
+#endif
+		break;
 	    case ISN_PUSHEXC:
 		smsg("%4d PUSH v:exception", current);
 		break;