Wrong colorization because of lambda return type with default Intelli Sense Engine

[aandrejevas]

Environment

• OS and Version: Windows_NT x64 10.0.19045
• VS Code Version: 1.80.1
• C/C++ Extension Version: v1.16.3

Bug Summary and Steps to Reproduce

Settings:

"C_Cpp.default.cppStandard": "c++23",
"C_Cpp.default.cStandard": "c17",
"C_Cpp.default.intelliSenseMode": "windows-gcc-x64",
"C_Cpp.default.compilerPath": "C:\\msys64\\ucrt64\\bin\\g++.exe",
"C_Cpp.autoAddFileAssociations": false,
"C_Cpp.suggestSnippets": false,
"C_Cpp.formatting": "vcFormat",
"C_Cpp.vcpkg.enabled": false,
"C_Cpp.default.defines": [],
"C_Cpp.intelliSenseCacheSize": 16384,
"C_Cpp.loggingLevel": "Debug",
"C_Cpp.simplifyStructuredComments": false,
"C_Cpp.errorSquiggles": "disabled",
"C_Cpp.codeAnalysis.runAutomatically": false,
"C_Cpp.dimInactiveRegions": false,

Bug Summary:
The following code is colorized incorrectly. It seems additional tokens are incorrectly interpreted as lambda return type.

#include <cstdio>

int main() {
	const auto lambda = []() -> const char *{
		return "Hello world!\n";
	};

	std::printf(lambda());
}

Screenshots:


Expected colorization

Configuration and Logs

LSP: cpptools/textEditorSelectionChange
LSP: textDocument/didOpen: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp
Checking for syntax errors: C:\Users\Aleksandras\Desktop\projects\QAP_BA\src\test.cpp
LSP: cpptools/activeDocumentChange: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp
Queueing IntelliSense update for files in translation unit of: C:\Users\Aleksandras\Desktop\projects\QAP_BA\src\test.cpp
LSP: cpptools/getCodeActions: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp (id: 8)
LSP: cpptools/getDocumentSymbols: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp (id: 9)
LSP: cpptools/textEditorSelectionChange
LSP: cpptools/getSemanticTokens: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp (id: 10)
LSP: cpptools/getInlayHints: file:///c%3A/Users/Aleksandras/Desktop/projects/QAP_BA/src/test.cpp (id: 11)
Error squiggle count: 0
Update IntelliSense time (sec): 0.282

Other Extensions

No response

Additional context

No response

[sean-mcmanus]

This is not caused by our extension's "enhancedColorization" feature. It repros without our extension. It's being tracked by jeff-hykin/better-cpp-syntax#405 (which is what VS Code uses for the lexical colorization).