Create Declaration / Definition with wrong name space (and possibly scope) in C

Environment

• OS and Version: Windows 11 Pro 22H2
• VS Code Version: 1.79.2
• C/C++ Extension Version: 1.16.3

Bug Summary and Steps to Reproduce

Bug Summary:

Steps to reproduce:

1. Create a new C source file, as "main.c"
2. Add the definition of some static functions; create some with a struct type parameter
3. Position the cursor on a function name
4. Recall with ctrl+shift+P the function "C/C++: Create Declaration/Definition"
5. A file named "main.h" is opened and the prototype added
6. Note that

• even if the function is declared as static a prototype is created in another file/header ("main.h")
• only if you have the precedent function already declared in "main.c" then the prototype goes to "main.c" as well (expected behavior)
• if your function has struct parameters the struct type specifier is removed, e.g. static int foo(struct MyStruct *p) {} becomes static int foo(MyStruct *p); which is unlikely workable, as tag space differs from identifiers space in C

Expected behavior:

• The declaration of static functions shall/should always be directed to the same file the functions are in
• The struct type specifier shall always be retained in C, as it directs identifiers in the tag namespace

Configuration and Logs

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "windowsSdkVersion": "10.0.22621.0",
            "compilerPath": "C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.34.31933/bin/Hostx64/x64/cl.exe",
            "cStandard": "c17",
            "cppStandard": "c++17",
            "intelliSenseMode": "windows-msvc-x86",
            "configurationProvider": "ms-vscode.makefile-tools",
        }
    ],
    "version": 4
}

Other Extensions

No response

Additional context

No response

Reproduce the issue with a static function and a struct parameter in main.c, then invoke the “C/C++: Create Declaration/Definition” command and inspect the generated main.h. Trace the command’s declaration-generation entry point and add coverage for keeping static declarations in main.c and preserving the struct specifier; done means both generated declarations remain valid C.