Clang: Add -Wno-exit-time-destructors

Change-Id: Ibf6b5c9a791e0fad49939c2a352b7eaa064f2376
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/plugins/clangcodemodel/clangutils.cpp

@@ -215,6 +215,7 @@ private:
         add(QStringLiteral("-Wno-c++98-compat-pedantic"));
         add(QStringLiteral("-Wno-unused-macros"));
         add(QStringLiteral("-Wno-newline-eof"));
+        add(QStringLiteral("-Wno-exit-time-destructors"));
 
         if (m_projectPart->languageVersion >= ProjectPart::CXX98)
             add(QStringLiteral("-Wno-missing-prototypes"));