### Godot version

4.0.beta16

### System information

Windows 10 Pro x64, GLES3, RTX 3080 Ti (528.02)

### Issue description

In Compatibility/GLES3 back-end, shaders which use a uniform to get the normal roughness buffer cannot compile. For example, the shader:
```glsl
shader_type spatial;

uniform sampler2D normal_roughness_texture : hint_normal_roughness_texture;

void fragment() {
    vec4 sample = texture(normal_roughness_texture, UV);
}
```
results in an error in the output:
```
  drivers/gles3/shader_gles3.cpp:242 - SceneShaderGLES3: Fragment shader compilation failed:
  0(890) : error C1503: undefined variable "normal_roughness_buffer"
  
  drivers/gles3/shader_gles3.cpp:342 - Method/function failed.
```

If I switch over to the Mobile or Forward+ backends, there is no shader compilation error.

### Steps to reproduce

Open the attached reproduction in the 4.0.beta16 editor.

When the scene is opened, the error is produced automatically:
1. Open `scene.tscn`
2. Open Output to review error

When the scene is saved with any changes made to the shader, the same error is also produced:
1. Open `scene.tscn`
2. Open `example.gdshader` in the shader editor.
3. Make a compile-able change to the shader.
4. Save the scene
5. Open Output to review the error

### Minimal reproduction project

[NormalRoughnessTexture_GLES3_Error.zip](https://github.com/godotengine/godot/files/10534253/NormalRoughnessTexture_GLES3_Error.zip)

} else if (args[j] != pfunc->arguments[j].type || (args[j] == TYPE_STRUCT && args2[j] != pfunc->arguments[j].type_str) || args3[j] != pfunc->arguments[j].array_size) {
				String func_arg_name;
				if (pfunc->arguments[j].type == TYPE_STRUCT) {
					func_arg_name = pfunc->arguments[j].type_str;
				} else {
					func_arg_name = get_datatype_name(pfunc->arguments[j].type);
				}
				if (pfunc->arguments[j].array_size > 0) {
					func_arg_name += "[";
					func_arg_name += itos(pfunc->arguments[j].array_size);
					func_arg_name += "]";
				}
				String arg_name;
				if (args[j] == TYPE_STRUCT) {
					arg_name = args2[j];
				} else {
					arg_name = get_datatype_name(args[j]);
				}
				if (args3[j] > 0) {
					arg_name += "[";
					arg_name += itos(args3[j]);
					arg_name += "]";
				}
				_set_error(vformat(RTR("Invalid argument for \"%s(%s)\" function: argument %d should be %s but is %s."), String(name), arg_list, j + 1, func_arg_name, arg_name));
				fail = true;
				break;
			}
		}
		if (!fail) {