Concepts with Lambdas gives an incorrect error message

Environment

• OS and Version: Windows 10, 21H1 (Build: 19043.1826)
• VS Code Version: 1.84.0
• C/C++ Extension Version: 1.17.5

Bug Summary and Steps to Reproduce

When using concepts that call static methods with lambdas the language server crashes.
This does not happen when no lambdas are used.

Reproduction Code

#include <concepts>

struct fullfills_my_concept
{
    template <typename Function>
    static auto test(const Function& func)
    {
        return 10;
    }
};

template <typename T>
concept MyConcept = requires {
    {
        T::test([]() { return 20; })
    } -> std::same_as<int>;
};

template <MyConcept T = fullfills_my_concept>
struct reprod
{
    reprod() { }
};

int main()
{
    reprod test{};

    return 0;
}

Configuration and Logs

{
    "configurations": [
        {
            "name": "Win32",
            "cStandard": "c23",
            "cppStandard": "c++20",
            "intelliSenseMode": "windows-msvc-x64",
            "configurationProvider": "ms-vscode.cmake-tools"
        }
    ],
    "version": 4
}

-------- Diagnostics - 11/4/2023, 4:11:35 AM
Version: 1.17.5
Current Configuration:
{
    "name": "Win32",
    "includePath": [
        "c:/Users/<redacted>/Desktop/issue/**"
    ],
    "defines": [
        "_DEBUG",
        "UNICODE",
        "_UNICODE"
    ],
    "windowsSdkVersion": "10.0.19041.0",
    "compilerPath": "cl.exe",
    "cStandard": "c17",
    "cppStandard": "c++17",
    "intelliSenseMode": "windows-msvc-x64",
    "compilerPathInCppPropertiesJson": "cl.exe",
    "intelliSenseModeIsExplicit": false,
    "cStandardIsExplicit": false,
    "cppStandardIsExplicit": false,
    "mergeConfigurations": false,
    "compilerPathIsExplicit": false,
    "configurationProvider": "ms-vscode.cmake-tools",
    "browse": {
        "path": [
            "c:/Users/<redacted>/Desktop/issue/**",
            "${workspaceFolder}"
        ],
        "limitSymbolsToIncludedHeaders": true
    }
}
Custom browse configuration: 
{
    "browsePath": [
        "c:/users/<redacted>/desktop/issue/build/cmakefiles/6855ef14fe638dc4888b0263f0c102ac",
        "c:/users/<redacted>/desktop/issue"
    ],
    "compilerPath": "c:/program files/microsoft visual studio/2022/community/vc/tools/msvc/14.37.32822/bin/hostx64/x64/cl.exe",
    "compilerArgs": [],
    "compilerFragments": [
        "/DWIN32 /D_WINDOWS /EHsc /Zi /Ob0 /Od /RTC1 -std:c++20 -MDd"
    ]
}
Custom configurations:
[ C:\Users\<redacted>\Desktop\issue\main.cpp ]
{
    "includePath": [],
    "defines": [],
    "compilerPath": "c:/program files/microsoft visual studio/2022/community/vc/tools/msvc/14.37.32822/bin/hostx64/x64/cl.exe",
    "compilerArgs": [],
    "compilerFragments": [
        "/DWIN32 /D_WINDOWS /EHsc /Zi /Ob0 /Od /RTC1 -std:c++20 -MDd"
    ]
}
cpptools version (native): 1.17.5.0
Translation Unit Mappings:
[ C:\Users\<redacted>\Desktop\issue\main.cpp ]:
    C:\Users\<redacted>\Desktop\issue\main.cpp
Translation Unit Configurations:
[ C:\Users\<redacted>\Desktop\issue\main.cpp ]:
    Process ID: 7152
    Memory Usage: 65 MB
    Compiler Path: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\bin\Hostx64\x64\cl.exe
    Includes:
        C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\include
        C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\um
        C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt
        C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\shared
        C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\winrt
        C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt
    Defines:
        WIN32
        _WINDOWS
    Standard Version: ms_c++20
    IntelliSense Mode: windows-msvc-x64
Total Memory Usage: 65 MB

------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 6354

IntelliSense process crash detected.
loggingLevel has changed to: Debug
LSP: cpptools/activeDocumentChange: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp
LSP: cpptools/textEditorSelectionChange
LSP: cpptools/getCodeActions: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4327)
LSP: cpptools/textEditorSelectionChange
LSP: cpptools/getInlayHints: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4328)
LSP: cpptools/getCodeActions: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4329)
LSP: cpptools/getFoldingRanges: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4330)
LSP: cpptools/textEditorSelectionChange
LSP: textDocument/willSaveWaitUntil: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4331)
willSaveWaitUntil: 0ms
LSP: textDocument/didSave: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp
  tag parsing file: C:\Users\<redacted>\Desktop\issue\main.cpp
LSP: cpptools/fileChanged: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp
idle loop: reparsing the active document
Checking for syntax errors: C:\Users\<redacted>\Desktop\issue\main.cpp
Queueing IntelliSense update for files in translation unit of: C:\Users\<redacted>\Desktop\issue\main.cpp
Error squiggle count: 2
Update IntelliSense time (sec): 0.272
LSP: cpptools/getSemanticTokens: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4332)
LSP: cpptools/getFoldingRanges: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4333)
LSP: cpptools/textEditorSelectionChange
LSP: cpptools/getCodeActions: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4334)
LSP: textDocument/willSaveWaitUntil: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4335)
willSaveWaitUntil: 0ms
LSP: textDocument/didSave: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp
  tag parsing file: C:\Users\<redacted>\Desktop\issue\main.cpp
LSP: cpptools/fileChanged: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp
idle loop: reparsing the active document
Checking for syntax errors: C:\Users\<redacted>\Desktop\issue\main.cpp
Queueing IntelliSense update for files in translation unit of: C:\Users\<redacted>\Desktop\issue\main.cpp
Error squiggle count: 2
Update IntelliSense time (sec): 0.276
LSP: textDocument/hover: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4336)
LSP: cpptools/getSemanticTokens: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4337)
LSP: cpptools/getCodeActions: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4338)
LSP: cpptools/getCodeActions: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4339)
LSP: cpptools/getFoldingRanges: file:///c%3A/Users/<redacted>/Desktop/issue/main.cpp (id: 4340)

Other Extensions

None used.

Additional context

No response

Commencez par reproduire le crash avec le main.cpp fourni en utilisant la configuration C++20 et comparez-le avec la version sans lambdas. Examinez le crash d’IntelliSense et la sortie de diagnostic afin d’identifier le chemin du language-server concerné. Le travail est terminé lorsque les concepts contenant des lambdas ne font plus planter IntelliSense et signalent le résultat correct.