Update to latest wgpu master

[yzsolt]

• Update to latest wgpu master
• Fix build error caused by Remove extern "C" from set_index_buffer wgpu#1077

[yzsolt]

Haven't dug myself into how RenderInner and the ID machinery works, so let me know if there's a better fix!

[kvark]

Thank you!
There is also one nasty hidden place that needs to be updated -

wgpu-rs/Cargo.toml

Line 51 in 2ef7250

rev = "f1398d29c7ad726968723a37187bd3932c539783"

[yzsolt]

There is also one nasty hidden place that needs to be updated -

Shouldn't it point to the same revision of gfx as wgpu-core master? Because it already does that, I'm not sure what it should be updated to otherwise.

[kvark]

There is also one nasty hidden place that needs to be updated -

Shouldn't it point to the same revision of gfx as wgpu-core master? Because it already does that, I'm not sure what it should be updated to otherwise.

Yes, it needs to point to the same thing. If it already does, then we are all good.
bors r+

[bors]

Build succeeded:

• docs
• build (windows-2019)
• build (macos-10.15)
• build (ubuntu-18.04)
• wasm