Concepts with Lambdas gives an incorrect error message

[Curve]

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

[Curve]

#8132

Might be related

[sean-mcmanus]

@Curve Thanks for reporting this. Issue 8132 is not related, because it's fixed in our (unreleased) 1.19.0 update, but this bug still repros. I've reported the bug against our shared VS parser at https://developercommunity.visualstudio.com/t/C-Concepts-with-lambdas-gives-incorrec/10508762 .