Rollup of 9 pull requests#67414

Closed

Mark-Simulacrum wants to merge 21 commits intorust-lang:masterfrom

Mark-Simulacrum:rollup-gxjwn6c

Commits on Dec 6, 2019

Fix pointing at arg when cause is outside of call
VirrageS
committed

Commits on Dec 7, 2019

Rename tests and add short test description
VirrageS
committed

Commits on Dec 15, 2019

Commits on Dec 16, 2019

Fix handling of wasm import modules and names
alexcrichton
committed

Commits on Dec 17, 2019

Remove outdated references to @T from comments
Matthew Healy
committed

Commits on Dec 19, 2019