Fix #11739 Assert failure in valueflow.cpp / setSymbolic() (#5104)

lib/symboldatabase.cpp

@@ -1584,7 +1584,13 @@ void SymbolDatabase::createSymbolDatabaseExprIds()
             inConstExpr = tok->next()->link();
         }
     }
-    for (const Scope * scope : functionScopes) {
+
+    auto exprScopes = functionScopes; // functions + global lambdas
+    std::copy_if(scopeList.front().nestedList.begin(), scopeList.front().nestedList.end(), std::back_inserter(exprScopes), [](const Scope* scope) {
+        return scope && scope->type == Scope::eLambda;
+    });
+
+    for (const Scope * scope : exprScopes) {
         nonneg int thisId = 0;
         std::unordered_map<std::string, std::vector<Token*>> exprs;
 

test/testvarid.cpp

@@ -232,6 +232,7 @@ private:
         TEST_CASE(decltype2);
 
         TEST_CASE(exprid1);
+        TEST_CASE(exprid2);
 
         TEST_CASE(structuredBindings);
     }
@@ -3760,6 +3761,25 @@ private:
         ASSERT_EQUALS(expected, actual);
     }
 
+    void exprid2() {
+        const std::string actual = tokenizeExpr( // #11739
+            "struct S { std::unique_ptr<int> u; };\n"
+            "auto f = [](const S& s) -> std::unique_ptr<int> {\n"
+            "    if (auto p = s.u.get())\n"
+            "        return std::make_unique<int>(*p);\n"
+            "    return nullptr;\n"
+            "};\n");
+
+        const char expected[] = "1: struct S { std :: unique_ptr < int > u ; } ;\n"
+                                "2: auto f ; f = [ ] ( const S & s ) . std :: unique_ptr < int > {\n"
+                                "3: if (@5 auto p@4 =@6 s@3 .@7 u@5 .@8 get (@9 ) ) {\n"
+                                "4: return std ::@10 make_unique < int > (@11 *@12 p@4 ) ; }\n"
+                                "5: return nullptr ;\n"
+                                "6: } ;\n";
+
+        ASSERT_EQUALS(expected, actual);
+    }
+
     void structuredBindings() {
         const char code[] = "int foo() { auto [x,y] = xy(); return x+y; }";
         ASSERT_EQUALS("1: int foo ( ) { auto [ x@1 , y@2 ] = xy ( ) ; return x@1 + y@2 ; }\n",