Fixes #9915.

Uses intrusive is_convertible in MSVC compilers.
Removes some throw conditions in the documentation produced by the allocator copy constructor (as the standard requires no-throw guarantee for those).

include/boost/container/static_vector.hpp

@@ -145,7 +145,7 @@ public:
     //! @param count    The number of values which will be contained in the container.
     //!
     //! @par Throws
-    //!   If Value's default constructor throws.
+    //!   If Value's value initialization throws.
     //!
     //! @par Complexity
     //!   Linear O(N).
@@ -155,12 +155,12 @@ public:
 
     //! @pre <tt>count <= capacity()</tt>
     //!
-    //! @brief Constructs a static_vector containing count value initialized values.
+    //! @brief Constructs a static_vector containing count default initialized values.
     //!
     //! @param count    The number of values which will be contained in the container.
     //!
     //! @par Throws
-    //!   If Value's default constructor throws.
+    //!   If Value's default initialization throws.
     //!
     //! @par Complexity
     //!   Linear O(N).
@@ -383,7 +383,7 @@ public:
     //! @param count    The number of elements which will be stored in the container.
     //!
     //! @par Throws
-    //!   If Value's default constructor throws.
+    //!   If Value's value initialization throws.
     //!
     //! @par Complexity
     //!   Linear O(N).
@@ -397,7 +397,7 @@ public:
     //! @param count    The number of elements which will be stored in the container.
     //!
     //! @par Throws
-    //!   If Value's default constructor throws.
+    //!   If Value's default initialization throws.
     //!
     //! @par Complexity
     //!   Linear O(N).