use type parameter bound when normalize super wildcard by position (IDEA-73980)

java/java-impl/src/com/intellij/psi/impl/source/tree/java/PsiMethodCallExpressionImpl.java

@@ -204,6 +204,27 @@ public class PsiMethodCallExpressionImpl extends ExpressionPsiElement implements
         final PsiSubstitutor substitutor = result.getSubstitutor();
         if (PsiUtil.isRawSubstitutor(method, substitutor)) return TypeConversionUtil.erasure(ret);
         PsiType substitutedReturnType = substitutor.substitute(ret);
+        PsiType lowerBound = PsiType.NULL;
+        if (substitutedReturnType instanceof PsiCapturedWildcardType) {
+          lowerBound = ((PsiCapturedWildcardType)substitutedReturnType).getLowerBound();
+        } else if (substitutedReturnType instanceof PsiWildcardType) {
+          lowerBound = ((PsiWildcardType)substitutedReturnType).getSuperBound();
+        }
+        if (lowerBound != PsiType.NULL) { //? super
+          final PsiClass containingClass = method.getContainingClass();
+          final PsiExpression qualifierExpression = methodExpression.getQualifierExpression();
+          final PsiClass childClass = qualifierExpression != null ? PsiUtil.resolveClassInClassTypeOnly(qualifierExpression.getType()) : null;
+          if (containingClass != null && childClass != null) {
+            final PsiType typeInChildClassTypeParams = TypeConversionUtil.getSuperClassSubstitutor(containingClass, childClass, PsiSubstitutor.EMPTY).substitute(ret);
+            final PsiClass substituted = PsiUtil.resolveClassInClassTypeOnly(typeInChildClassTypeParams);
+            if (substituted instanceof PsiTypeParameter) {
+              final PsiClassType[] extendsListTypes = substituted.getExtendsListTypes();
+              if (extendsListTypes.length == 1) {
+                return extendsListTypes[0];
+              }
+            }
+          }
+        }
         return PsiImplUtil.normalizeWildcardTypeByPosition(substitutedReturnType, call);
       }
       return TypeConversionUtil.erasure(ret);

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/SuperBound.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2000-2011 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.lang.Override;
+import java.util.List;
+public class Test
+{
+    public interface MyList<N extends Number> extends List<N>
+    {
+    }
+
+    void test(MyList<? super Integer> list)
+    {
+        Number n = list.get(0);
+    }
+}
+
+class Test1
+{
+    public interface MyList<N extends Number> extends List<N> {
+      @Override
+      N get(int index);
+    }
+
+    void test(MyList<? super Integer> list)
+    {
+        Number n = list.get(0);
+    }
+}
+
+class Test2
+{
+    public interface MyList<N extends Number>{
+      N get(int index);
+    }
+
+    void test(MyList<? super Integer> list)
+    {
+        Number n = list.get(0);
+    }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/LightAdvHighlightingJdk7Test.java

@@ -290,4 +290,8 @@ public class LightAdvHighlightingJdk7Test extends LightDaemonAnalyzerTestCase {
     enableInspectionTool(new UnusedDeclarationInspection());
     doTest(true, false);
   }
+
+  public void testSuperBound() throws Exception {
+    doTest(false, false);
+  }
 }