diamonds: do not capture wildcard on inference (IDEA-73689 )

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

@@ -97,14 +97,14 @@ interface I<T> {
 class FI1 {
   I<? extends String> i1 = new I<<error descr="Cannot use ''<>'' with anonymous inner classes"></error>>() {
     @Override
-    public String m() {
+    public <error descr="'m()' in 'Anonymous class derived from I' clashes with 'm()' in 'I'; attempting to use incompatible return type">String</error> m() {
       return null;
     }
   };
 
   I<?> i2 = new I<<error descr="Cannot use ''<>'' with anonymous inner classes"></error>>() {
     @Override
-    public Object m() {
+    public <error descr="'m()' in 'Anonymous class derived from I' clashes with 'm()' in 'I'; attempting to use incompatible return type">Object</error> m() {
       return null;
     }
   };
@@ -152,4 +152,23 @@ class ParenthTest<T extends TZ> {
         ParenthTest<T> x = (new ParenthTest<>(null)); //red code is here
         return 1;
     }
+}
+
+class TestWildcardInference {
+  interface A<T> {
+  }
+  
+  class B<V> implements A<V> {
+    B(C<V> v) {
+    }
+  }
+  
+  class C<E> {}
+  
+  class U {
+    void foo() {
+      C<? extends Number> x = null;
+      A<? extends Number> y = new B<>(x);
+    }
+  }
 }

java/openapi/src/com/intellij/psi/PsiDiamondType.java

@@ -295,18 +295,7 @@ public class PsiDiamondType extends PsiType {
       if (myErrorMessage != null) {
         return PsiType.EMPTY_ARRAY;
       }
-      final PsiType[] result = new PsiType[myInferredTypes.size()];
-      for (int i = 0, myInferredTypesSize = myInferredTypes.size(); i < myInferredTypesSize; i++) {
-        PsiType inferredType = myInferredTypes.get(i);
-        if (inferredType instanceof PsiWildcardType) {
-          final PsiType bound = ((PsiWildcardType)inferredType).getBound();
-          result[i] = bound != null ? bound : PsiType.getJavaLangObject(PsiManager.getInstance(myProject), GlobalSearchScope.allScope(myProject));
-        }
-        else {
-          result[i] = inferredType;
-        }
-      }
-      return result;
+      return myInferredTypes.toArray(new PsiType[myInferredTypes.size()]);
     }
 
     /**