Fix non-Unicode wxMSW build after command line arguments fixes

The changes of d979a7f0d8 (Fix memory leak of command line arguments in
wxMSW, 2022-12-26) broke compilation with wxUSE_UNICODE==0 as they were
backported from master where this case isn't possible any more.

Adjust these changes to work in non-Unicode build too.

See #23082, #23516.

docs/changes.txt

@@ -257,6 +257,7 @@ wxGTK:
 
 wxMSW:
 
+- Fix (deprecated) build without Unicode support broken in 3.2.2 (#23516).
 - Fix setting locale for wxLANGUAGE_UKRAINIAN (Ulrich Telle, #23210).
 - Don't reset custom wxToolBar background on system colour change (#23386).
 - Fix wxUILocale::GetPreferredUILanguages() under < 10 (Brian Nixon, #23416).

src/msw/main.cpp

@@ -197,7 +197,7 @@ int wxEntry(int& argc, wxChar **argv)
 WXDLLIMPEXP_BASE void wxMSWCommandLineInit();
 WXDLLIMPEXP_BASE void wxMSWCommandLineCleanup();
 WXDLLIMPEXP_BASE int& wxMSWCommandLineGetArgc();
-WXDLLIMPEXP_BASE wchar_t** wxMSWCommandLineGetArgv();
+WXDLLIMPEXP_BASE wxChar** wxMSWCommandLineGetArgv();
 
 #if wxUSE_BASE
 
@@ -227,11 +227,6 @@ struct wxMSWCommandLineArguments
             argc = 0;
         }
     }
-
-    ~wxMSWCommandLineArguments()
-    {
-        Cleanup();
-    }
 #else // !wxUSE_UNICODE
     void Init()
     {
@@ -256,7 +251,7 @@ struct wxMSWCommandLineArguments
         argv[argc] = NULL;
     }
 
-    ~wxMSWCommandLineArguments()
+    void Cleanup()
     {
         if ( !argc )
             return;
@@ -271,6 +266,11 @@ struct wxMSWCommandLineArguments
     }
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
+    ~wxMSWCommandLineArguments()
+    {
+        Cleanup();
+    }
+
     int argc;
     wxChar **argv;
 
@@ -296,7 +296,7 @@ WXDLLIMPEXP_BASE int& wxMSWCommandLineGetArgc()
     return wxArgs.argc;
 }
 
-WXDLLIMPEXP_BASE wchar_t** wxMSWCommandLineGetArgv()
+WXDLLIMPEXP_BASE wxChar** wxMSWCommandLineGetArgv()
 {
     return wxArgs.argv;
 }