Fix #12659 False positive: syntaxError when there is && in array argument (#6341)

Author: chrchr-github

lib/tokenize.cpp

@@ -8653,7 +8653,7 @@ void Tokenizer::findGarbageCode() const
             syntaxError(tok);
         if (Token::Match(tok, "%cop%|=|,|[ %or%|%oror%|/|%"))
             syntaxError(tok);
-        if (Token::Match(tok, "[;([{] %comp%|&&|%oror%|%or%|%|/"))
+        if (Token::Match(tok, "[;([{] %comp%|%oror%|%or%|%|/"))
             syntaxError(tok);
         if (Token::Match(tok, "%cop%|= ]") && !(isCPP() && Token::Match(tok->previous(), "%type%|[|,|%num% &|=|> ]")))
             syntaxError(tok);

test/testtokenize.cpp

@@ -7134,6 +7134,9 @@ class TestTokenizer : public TestFixture {
         ASSERT_NO_THROW(tokenizeAndStringify("S* g = ::new(ptr) S();")); // #12552
         ASSERT_NO_THROW(tokenizeAndStringify("void f(int* p) { return ::delete p; }"));
 
+        ASSERT_NO_THROW(tokenizeAndStringify("template <typename T, int N>\n" // #12659
+                                             "constexpr void f(T(&&a)[N]) {}"));
+
         ignore_errout();
     }