Clang: Fix compiler warnings

MSVC64 reported implicit size_t to int/unsigned conversion.

Change-Id: I253626dd25f9f3eb67b8fffb26006b619e826034
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/libs/utils/sizedarray.h

@@ -56,7 +56,7 @@ public:
 
     constexpr SizedArray() = default;
     SizedArray(std::initializer_list<T> list)
-        : m_size(list.size())
+        : m_size(std::uint8_t(list.size()))
     {
         std::copy(list.begin(), list.end(), begin());
     }