Uninitialized variables: Fixed false positives caused by recent improvement when variable is potentially initialized in else block.

lib/checkuninitvar.cpp

@@ -1157,7 +1157,7 @@ bool CheckUninitVar::checkScopeForVariable(const Token *tok, const unsigned int
                 if (initif && initelse)
                     return true;
 
-                if (initif || initelse)
+                if (initif || initelse || possibleInitElse)
                     ++number_of_if;
             }
         }

test/testuninitvar.cpp

@@ -1909,6 +1909,14 @@ private:
                         "}");
         ASSERT_EQUALS("", errout.str());
 
+        checkUninitVar2("void f() {\n"
+                        "    int a=0, b;\n"
+                        "    if (x) { }\n"
+                        "    else if (y==2) { a=1; b=2; }\n"
+                        "    if (a) { ++b; }\n"
+                        "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         // asm
         checkUninitVar2("void f() {\n"
                         "    int x;\n"