Fixed parsing of block command comment arguments under non-Windows platforms.

src/CppParser/AST.cpp

@@ -844,6 +844,8 @@ BlockContentComment::BlockContentComment(CommentKind Kind) : Comment(Kind) {}
 
 BlockCommandComment::Argument::Argument() {}
 
+BlockCommandComment::Argument::Argument(const Argument& rhs) : Text(rhs.Text) {}
+
 DEF_STRING(BlockCommandComment::Argument, Text)
 
 BlockCommandComment::BlockCommandComment() : BlockContentComment(CommentKind::BlockCommandComment), CommandId(0) {}

src/CppParser/AST.h

@@ -957,6 +957,7 @@ public:
     {
     public:
         Argument();
+        Argument(const Argument&);
         STRING(Text)
     };
     BlockCommandComment();