We have an existing `version_key` helper function for sorting versions.
It also does a better job, producing output like:
```
All recent (non-legacy) installable versions are:
3.1.31
3.1.31-asserts
3.1.30
3.1.30-asserts
3.1.29
3.1.29-asserts
```
Rather than:
```
All recent (non-legacy) installable versions are:
3.1.31
3.1.30
3.1.29
3.1.28
3.1.27
```
(with -assert versions listed after 3.1.0)
* Add support for Visual Studio 2022 and migrate to using cmake --build when building on Windows. Leverage the VS2019 MSBuild 'Multi-ToolTask' feature CL_MPCount to saturate project builds properly to 100% CPU usage so building LLVM builds different cpp files in parallel. Clean up some code duplication around Visual Studio support.
* flake
* Work around Linux bot not having 'cmake --build . -j' flag.
Done to upgrade from CMake 3.16.3 to 3.22.1. CMake 3.21 or newer is needed to build the Qt 6.4.1 sources with emscripten.
Also update to libidn12 to resolve an "Unable to locate package libidn11" error.
Newer versions of emscipten, starting all the way back in 1.39.13, can
automatically locate the `.emscripten` config file that emsdk creates so
there is no need for the explicit EM_CONFIG environment variable. Its
redundant and adds unnessary noisce/complexity.
Really, adding emcc to the PATH is all the is needed these days.
One nice thing about this change is that it allows folks to run
whichever emcc they want to and have it just work, even if they have
configured emsdk. Without this change, if I activate emsdk and I run
`some/other/emcc` then emsdk's `EM_CONFIG` will still be present and
override the configuration embedded in `some/other/emcc`.
e.g. in the same shell, with emsdk activated, I can run both these
commands and have them both just work as expected.
```
$ emcc --version
$ /path/to/my/emcc --version
```
Without this the recommended way to silence emsdk_env was to pipe its
stderr to /dev/null.. but then you also loose potentially useful error
message.
Fixes: #946
* Explicit outputs for wasm_cc_binary
* Backwards compatibility
* data_runfiles restore
* restore test_bazel.sh
* Using wrong path on accident
* two separate rules for legacy support
* Added name attribute to wasm_cc_binary rule
