Fix #14395 FP syntaxError for lambda in for loop (danmar#8125)

Author: chrchr-github

lib/tokenize.cpp

@@ -8830,17 +8830,19 @@ void Tokenizer::findGarbageCode() const
             continue;
         // count number of semicolons
         int semicolons = 0, colons = 0;
-        const Token* const startTok = tok;
-        tok = tok->linkAt(1)->previous(); // find ")" of the for-loop
-        // walk backwards until we find the beginning (startTok) of the for() again
-        for (; tok != startTok; tok = tok->previous()) {
+        const Token* const endTok = tok->linkAt(1);
+        for (tok = tok->tokAt(2); tok != endTok; tok = tok->next()) {
+            if (const Token* lam = findLambdaEndTokenWithoutAST(tok)) {
+                tok = lam;
+                continue;
+            }
             if (tok->str() == ";") { // do the counting
                 semicolons++;
             } else if (tok->str() == ":") {
                 if (tok->strAt(-1) == ",")
                     syntaxError(tok);
                 colons++;
-            } else if (tok->str() == ")") { // skip pairs of ( )
+            } else if (tok->str() == "(") { // skip pairs of ( )
                 tok = tok->link();
             }
         }

test/testtokenize.cpp

@@ -7689,6 +7689,10 @@ class TestTokenizer : public TestFixture {
                                              "    return {};\n"
                                              "};\n"));
 
+        ASSERT_NO_THROW(tokenizeAndStringify("void f() {\n" // #14395
+                                             "    for (int i : [](int a, int b) { ++a; ++b; return std::vector<int>{a, b}; }(1, 2)) {}\n"
+                                             "}\n"));
+
         ignore_errout();
     }