Disable Value&& constructor for the String class on Windows

refs #12555

lib/base/string.cpp

@@ -29,10 +29,12 @@ REGISTER_BUILTIN_TYPE(String, String::GetPrototype());
 
 const String::SizeType String::NPos = std::string::npos;
 
+#ifndef _MSC_VER
 String::String(Value&& other)
 {
 	*this = std::move(other);
 }
+#endif /* _MSC_VER */
 
 String& String::operator=(Value&& other)
 {

lib/base/string.hpp

@@ -85,7 +85,9 @@ public:
 		: m_Data(std::move(other.m_Data))
 	{ }
 
+#ifndef _MSC_VER
 	String(Value&& other);
+#endif /* _MSC_VER */
 
 	inline ~String(void)
 	{ }