Fixed MSVC-specific compile errors when /Za command-line option is used, due to lack of throw() in std::~exception().

[SVN r44706]

include/boost/exception/enable_error_info.hpp

@@ -25,6 +25,10 @@ boost
                 T(x)
                 {
                 }
+
+            ~error_info_injector() throw()
+                {
+                }
             };
 
         struct large_size { char c[256]; };

include/boost/exception_ptr.hpp

@@ -30,6 +30,10 @@ boost
             boost::exception(e)
             {
             }
+
+		~unknown_exception() throw()
+			{
+			}
         };
 
     typedef intrusive_ptr<exception_detail::clone_base const> exception_ptr;
@@ -56,6 +60,10 @@ boost
                 boost::exception(e2)
                 {
                 }
+
+			~current_exception_std_exception_wrapper() throw()
+				{
+				}
             };
 
         template <class T>

test/Jamfile.v2

@@ -7,6 +7,13 @@
 
 import testing ;
 
+project :
+    requirements
+        <link>static
+        <runtime-link>static
+        <toolset>msvc:<cxxflags>/Za
+    ;
+
 #to_string
 run is_output_streamable_test.cpp ;
 run has_to_string_test.cpp ;