"Select IntelliSense Configuration" and Run&Debug button do not offer user-specified compilerPath

[Colengms]

Repro steps:

• Install a non-standard C++ compiler into an arbitrary location. My repro was using a compiler toolchain downloaded here: https://github.com/mstorsjo/llvm-mingw/releases
• Specify a path to that compiler in the compilerPath field of c_cpp_properties.json. (IntelliSense properly queries the compiler and uses its settings for IntelliSense). In my case, this was; "compilerPath": "Z:\\llvm-mingw-20220906-msvcrt-x86_64\\bin\\clang++"
• Use either the "Select IntelliSense Configuration" command or click on the "Debug C++ file" (run and debug) button.
  

Note that the compiler specified in compilerPath is not offered as an option on either of those lists.

Also, there are two similarly named commands: "C/C++: Select IntelliSense Configuration..." and "C/C++: Select a Configuration...". Perhaps these names could be revisited to make them less ambiguous.

[Colengms]

The Run & Debug scenario is more obviously wrong, as the user should be able to build using the same compilerPath they've configured IntelliSense with.

[sean-mcmanus]

@Colengms What did you have in mind for the command names? That's a completely separate issue so I'm not sure why it's added to this issue. "C/C++: Select IntelliSense Configuration..." is short for "C/C++: Select IntelliSense Configuration Source..." but I was worried that would be too long.

[michelleangela]

This is resolved in https://github.com/microsoft/vscode-cpptools/releases/tag/1.16.0.