Added one more friend class.

src/Token.h

@@ -16,9 +16,10 @@ namespace clang {
   };
 
   class Token {
-  public:
+    friend class Tokens;
     Token(CXTranslationUnit &cx_tu, CXToken &cx_token, CXCursor &cx_cursor): 
       cx_tu(cx_tu), cx_token(cx_token), cx_cursor(cx_cursor), offsets(get_source_range().get_offsets()) {};
+  public:
     const TokenKind get_kind();
     std::string get_spelling();
     SourceLocation get_source_location();

src/Tokens.cc

@@ -8,7 +8,7 @@ clang::Tokens::Tokens(CXTranslationUnit &cx_tu, const SourceRange &range): cx_tu
   cx_cursors.reserve(num_tokens);
   clang_annotateTokens(cx_tu, cx_tokens, num_tokens, cx_cursors.data());
   for (unsigned i = 0; i < num_tokens; i++) {
-    emplace_back(cx_tu, cx_tokens[i], cx_cursors[i]);
+    emplace_back(Token(cx_tu, cx_tokens[i], cx_cursors[i]));
   }
 }