Fix #9247 FP uninitMemberVar (inconclusive) (#3765)

Author: chrchr-github

lib/symboldatabase.cpp

@@ -5176,6 +5176,11 @@ const Function* Scope::findFunction(const Token *tok, bool requireConst) const
             // Try to evaluate the apparently more complex expression
             else if (check->isCPP()) {
                 const Token *vartok = arguments[j];
+                if (vartok->str() == ".") {
+                    const Token* rml = nextAfterAstRightmostLeaf(vartok);
+                    if (rml)
+                        vartok = rml->previous();
+                }
                 while (vartok->isUnaryOp("&") || vartok->isUnaryOp("*"))
                     vartok = vartok->astOperand1();
                 const Variable* var = vartok->variable();

test/testconstructors.cpp

@@ -129,6 +129,7 @@ class TestConstructors : public TestFixture {
         TEST_CASE(initvar_nocopy1);            // ticket #2474
         TEST_CASE(initvar_nocopy2);            // ticket #2484
         TEST_CASE(initvar_nocopy3);            // ticket #3611
+        TEST_CASE(initvar_nocopy4);            // ticket #9247
         TEST_CASE(initvar_with_member_function_this); // ticket #4824
 
         TEST_CASE(initvar_destructor);      // No variables need to be initialized in a destructor
@@ -1598,6 +1599,22 @@ class TestConstructors : public TestFixture {
         ASSERT_EQUALS("[test.cpp:4]: (warning, inconclusive) Member variable 'A::b' is not assigned in the copy constructor. Should it be copied?\n", errout.str());
     }
 
+    void initvar_nocopy4() { // #9247
+        check("struct S {\n"
+              "    S(const S & s);\n"
+              "    void S::Set(const T& val);\n"
+              "    void S::Set(const U& val);\n"
+              "    T t;\n"
+              "};\n"
+              "S::S(const S& s) {\n"
+              "    Set(s.t);\n"
+              "}\n"
+              "void S::Set(const T& val) {\n"
+              "    t = val;\n"
+              "}", /*inconclusive*/ true);
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void initvar_with_member_function_this() {
         check("struct Foo {\n"
               "  Foo(int m) { this->setMember(m); }\n"