fixes after review

Author: Seppli11

python-frontend/src/main/java/org/sonar/python/semantic/v2/TypeInferenceV2.java

@@ -34,7 +34,7 @@
 import org.sonar.plugins.python.api.tree.StatementList;
 import org.sonar.plugins.python.api.tree.Tree;
 import org.sonar.python.semantic.SymbolUtils;
-import org.sonar.python.semantic.v2.types.AstBasedPropagation;
+import org.sonar.python.semantic.v2.types.AstBasedTypeInference;
 import org.sonar.python.semantic.v2.types.FlowSensitiveTypeInference;
 import org.sonar.python.semantic.v2.types.Propagation;
 import org.sonar.python.semantic.v2.types.PropagationVisitor;
@@ -123,8 +123,8 @@ private Map<SymbolV2, Set<PythonType>> inferTypesAndMemberAccessSymbols(Tree sco
     statements.accept(tryStatementVisitor);
     if (tryStatementVisitor.hasTryStatement()) {
       // CFG doesn't model precisely try-except statements. Hence we fallback to AST based type inference
-      return new AstBasedPropagation(propagationVisitor.propagationsByLhs(), projectLevelTypeTable)
-        .processPropagations(getTrackedVars(declaredVariables, assignedNames));
+      return new AstBasedTypeInference(propagationVisitor.propagationsByLhs(), projectLevelTypeTable)
+        .process(getTrackedVars(declaredVariables, assignedNames));
     }
 
     ControlFlowGraph cfg = controlFlowGraphSupplier.get();

python-frontend/src/main/java/org/sonar/python/semantic/v2/types/AstBasedPropagation.java renamed to python-frontend/src/main/java/org/sonar/python/semantic/v2/types/AstBasedTypeInference.java

@@ -42,16 +42,16 @@
 import org.sonar.python.types.v2.PythonType;
 import org.sonar.python.types.v2.UnionType;
 
-public class AstBasedPropagation {
+public class AstBasedTypeInference {
   private final Map<SymbolV2, Set<Propagation>> propagationsByLhs;
   private final Propagator propagator;
 
-  public AstBasedPropagation(Map<SymbolV2, Set<Propagation>> propagationsByLhs, TypeTable typeTable) {
+  public AstBasedTypeInference(Map<SymbolV2, Set<Propagation>> propagationsByLhs, TypeTable typeTable) {
     this.propagationsByLhs = propagationsByLhs;
     this.propagator = new Propagator(typeTable);
   }
 
-  public Map<SymbolV2, Set<PythonType>> processPropagations(Set<SymbolV2> trackedVars) {
+  public Map<SymbolV2, Set<PythonType>> process(Set<SymbolV2> trackedVars) {
     computePropagationDependencies(trackedVars);
 
     Set<SymbolV2> initializedVars = new HashSet<>();

python-frontend/src/main/java/org/sonar/python/semantic/v2/types/TrivialTypePropagationVisitor.java

@@ -89,8 +89,10 @@ private boolean isNumber(PythonType type) {
   }
 
   private static PythonType toObjectType(PythonType type) {
-    if (type instanceof ObjectType || type == PythonType.UNKNOWN) {
+    if (type == PythonType.UNKNOWN) {
       return type;
+    } else if(type instanceof ObjectType objectType) {
+      return new ObjectType(objectType.typeWrapper(), objectType.attributes(), objectType.members(), objectType.typeSource());
     }
     return new ObjectType(type);
   }

python-frontend/src/test/java/org/sonar/python/semantic/v2/TypeInferenceV2Test.java

@@ -2633,7 +2633,6 @@ void unary_expression_of_variables(String code, PythonType expectedType) {
     assertThat(lastExpression(code).typeV2()).isInstanceOf(ObjectType.class).extracting(PythonType::unwrappedType).isEqualTo(expectedType);
   }
 
-
   @ParameterizedTest
   @MethodSource("unary_expression_of_variables")
   void unary_expression_of_variables_with_try_except(String code, PythonType expectedType) {