Fix #14300 FP duplicateValueTernary for pointers allocated with new (danmar#8004)

Co-authored-by: chrchr-github <noreply@github.com>

Author: chrchr-github

lib/astutils.cpp

@@ -1430,7 +1430,7 @@ static bool compareKnownValue(const Token * const tok1, const Token * const tok2
     if (v1 == tok1->values().end()) {
         return false;
     }
-    if (v1->isNonValue() || v1->isContainerSizeValue() || v1->isSymbolicValue())
+    if (v1->isNonValue() || v1->isContainerSizeValue() || v1->isBufferSizeValue() || v1->isSymbolicValue())
         return false;
     const auto v2 = std::find_if(tok2->values().cbegin(), tok2->values().cend(), isKnownFn);
     if (v2 == tok2->values().end()) {

test/testother.cpp

@@ -8203,6 +8203,18 @@ class TestOther : public TestFixture {
               "    return (x >= 0.0) ? 0.0 : -0.0;\n"
               "}\n");
         ASSERT_EQUALS("", errout_str());
+
+        check("struct A {};\n" // # 14300
+              "struct B {};\n"
+              "void f(bool x) {\n"
+              "    A* a = new A();\n"
+              "    B* b = new B();\n"
+              "    auto p = x ? static_cast<void*>(a) : static_cast<void*>(b);\n"
+              "    (void)p;\n"
+              "    delete a;\n"
+              "    delete b;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout_str());
     }
 
     void duplicateValueTernarySizeof() { // #13773