Bind group with multiple buffers broken on WebGL2 backend

[Rainb0wCodes]

When using code that uses two buffers in the same bind group like this:

Rust source

let projection_bind_group_layout =
    device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
        label: Some("Perspective Bind Group Layout"),
        entries: &[
            wgpu::BindGroupLayoutEntry {
                binding: 0,
                visibility: wgpu::ShaderStages::VERTEX,
                ty: wgpu::BindingType::Buffer {
                    ty: wgpu::BufferBindingType::Uniform,
                    has_dynamic_offset: false,
                    min_binding_size: None,
                },
                count: None,
            },
            wgpu::BindGroupLayoutEntry {
                binding: 1,
                visibility: wgpu::ShaderStages::VERTEX,
                ty: wgpu::BindingType::Buffer {
                    ty: wgpu::BufferBindingType::Uniform,
                    has_dynamic_offset: false,
                    min_binding_size: None,
                },
                count: None,
            },
        ],
    });
let projection_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
    label: Some("Projection Bind Group"),
    layout: &projection_bind_group_layout,
    entries: &[
        wgpu::BindGroupEntry {
            binding: 0,
            resource: projection_buffer.as_entire_binding(),
        },
        wgpu::BindGroupEntry {
            binding: 1,
            resource: transform_buffer.as_entire_binding(),
        },
    ],
});

// ...
render_pass.set_bind_group(0, &self.projection_bind_group, &[]);

Shader source:

@group(0) @binding(0) var<uniform> perspective: mat4x4<f32>;
@group(0) @binding(1) var<uniform> transform: mat4x4<f32>;

The two uniforms end up pointing to the same buffer (with the contents of projection_buffer). This only happens on the WebGL2 backend and can be seen using WebGL debugger tools such as SPECTOR.js.

[Rainb0wCodes]

Should be fixed by gfx-rs/naga#2189
Edit: fixed in naga 0.11