Expected expression, found: QUESTION in Shader Editor

[KoBeWi]

Godot version:

3.2.3

Steps to reproduce:

1. Create a shader with this code

   
   shader_type canvas_item;

void fragment() { COLOR = vec4(0, 0, 0, ); }

2.
![image](https://user-images.githubusercontent.com/2223172/95797289-6ec42f00-0cef-11eb-8a4d-3ada1bfe7c0c.png)

On master it says COMMA instead of QUESTION.

[4x4x8]

Just edit vec4() to vec4(1,1,1,1)

Mini_tutorial: vec4(1 - Red, 1 - G,reen, 1 - Blue, 1 - Alpha )

And now we have vec4(1,1,1,1)

UPDATE1: Try the shader_type spatial;

Update2: don't, edit only vec4()

[akien-mga]

On master it says COMMA instead of QUESTION.

Now it also says "found: COMMA" in 3.4 RC 1.

But that seems wrong too I guess, what it should find is a closing parenthesis where it expected an expression. The overall formulation of the error could maybe also be improved, it's a bit abrupt. CC @Chaosus

[Chaosus]

Just a syntax error is good to replace it? eg shadertoy have that: