Fix regression: wrong array size (#5194)

Author: chrchr-github

lib/valueflow.cpp

@@ -8801,7 +8801,7 @@ static void valueFlowContainerSize(TokenList* tokenlist,
                     value.setKnown();
                     valueFlowForward(containerTok->next(), containerTok, value, tokenlist, settings);
                 }
-            } else if (Token::Match(tok->previous(), ">|return (|{") && astIsContainer(tok)) {
+            } else if (Token::Match(tok->previous(), ">|return (|{") && astIsContainer(tok) && getLibraryContainer(tok)->size_templateArgNo < 0) {
                 std::vector<ValueFlow::Value> values;
                 if (Token::simpleMatch(tok, "{")) {
                     values = getInitListSize(tok, tok->valueType(), settings, true);

test/testvalueflow.cpp

@@ -6615,6 +6615,9 @@ class TestValueFlow : public TestFixture {
 
         code = "std::vector<int> f() { return {}; }";
         ASSERT_EQUALS("", isKnownContainerSizeValue(tokenValues(code, "{ } ;"), 0));
+
+        code = "int f() { auto a = std::array<int, 2>{}; return a[1]; }";
+        ASSERT_EQUALS("values.size():0", isKnownContainerSizeValue(tokenValues(code, "a ["), 0));
     }
 
     void valueFlowContainerElement()