message: Fixed warning with Clang+MSVC using __int64 to define the helper ImU64 type
diff: @@ -93,7 +93,7 @@ typedef int ImGuiTreeNodeFlags; // flags: for TreeNode*(),CollapsingHeader()
  typedef int ImGuiWindowFlags; // flags: for Begin*() // enum ImGuiWindowFlags_
  typedef int (*ImGuiTextEditCallback)(ImGuiTextEditCallbackData *data);
  typedef void (*ImGuiSizeConstraintCallback)(ImGuiSizeConstraintCallbackData* data);
  -#ifdef _MSC_VER
  +#if defined(_MSC_VER) && !defined(__clang__)
  typedef unsigned __int64 ImU64; // 64-bit unsigned integer
  #else
  typedef unsigned long long ImU64; // 64-bit unsigned integer
  