[java-inspections] IDEA-363980 Support JEP 495. Update ImplicitToExplicit /ExplicitToImplicit inspections

- tests

(cherry picked from commit 946428cb5f8e397625acbec9446d731fb0550225)

GitOrigin-RevId: b7240b0999796cb367dd01eb49ff51b63004de94

java/java-impl-inspections/src/com/intellij/codeInspection/ExplicitToImplicitClassMigrationInspection.java

@@ -186,10 +186,10 @@ public final class ExplicitToImplicitClassMigrationInspection extends AbstractBa
         }
 
         for (SmartPsiElementPointer<PsiImportStatementBase> pointer : pointers) {
-          PsiImportStatementBase pointerElement = pointer.getElement();
+          PsiImportStatementBase importStatementBase = pointer.getElement();
-          if (pointerElement == null) continue;
+          if (importStatementBase == null) continue;
-          if (!pointerElement.isOnDemand()) continue;
+          if (!importStatementBase.isOnDemand()) continue;
-          ReplaceOnDemandImportIntention.replaceOnDemand(pointerElement);
+          ReplaceOnDemandImportIntention.replaceOnDemand(importStatementBase);
         }
       }
       PsiClass psiClass = ObjectUtils.tryCast(element, PsiClass.class);

java/java-tests/testData/inspection/explicitToImplicitClassMigration/afterWithImportConflictDemandsOverModule.java

@@ -0,0 +1,6 @@
+import p.List;
+
+public static void main(Strin<caret>g[] args) {
+    List a = null;
+    System.out.println("Hello, world!");
+}

java/java-tests/testData/inspection/explicitToImplicitClassMigration/beforeWithImportConflictDemandsOverModule.java

@@ -0,0 +1,9 @@
+import p.*;
+
+<warning descr="Explicit class declaration can be converted into implicitly declared class">public class beforeWithImport<caret>ConflictDemandsOverModule</warning>  {
+
+  public static void main(String[] args) {
+    List a = null;
+    System.out.println("Hello, world!");
+  }
+}

java/java-tests/testData/inspection/implicitToExplicitClassBackwardMigration/afterConflictModuleImportDemandOverModule.java

@@ -0,0 +1,7 @@
+import test.List;
+
+public class beforeC<caret>onflictModuleImportDemandOverModule {
+    public static void main(String[] args) {
+        List a = null;
+    }
+}

java/java-tests/testData/inspection/implicitToExplicitClassBackwardMigration/beforeConflictModuleImportDemandOverModule.java

@@ -0,0 +1,5 @@
+import test.*;
+
+public static void m<caret>ain(String[] args) {
+  List a = null;
+}

java/java-tests/testSrc/com/intellij/java/codeInspection/ExplicitToImplicitClassMigrationInspectionInspectionTest.java

@@ -5,6 +5,8 @@ import com.intellij.JavaTestUtil;
 import com.intellij.codeInsight.intention.IntentionAction;
 import com.intellij.codeInspection.ExplicitToImplicitClassMigrationInspection;
 import com.intellij.java.JavaBundle;
+import com.intellij.pom.java.JavaFeature;
+import com.intellij.testFramework.IdeaTestUtil;
 import com.intellij.testFramework.LightProjectDescriptor;
 import com.intellij.testFramework.fixtures.LightJavaCodeInsightFixtureTestCase;
 import org.jetbrains.annotations.NotNull;
@@ -49,6 +51,19 @@ public class ExplicitToImplicitClassMigrationInspectionInspectionTest extends Li
     doTest();
   }
 
+  public void testWithImportConflictDemandsOverModule() {
+    IdeaTestUtil.withLevel(getModule(), JavaFeature.PACKAGE_IMPORTS_SHADOW_MODULE_IMPORTS.getMinimumLevel(), () -> {
+       myFixture.addClass(
+         """
+           package p;
+           public class List{}
+           """
+       );
+       doTest();
+     }
+    );
+  }
+
   private void doNotFind() {
     myFixture.enableInspections(new ExplicitToImplicitClassMigrationInspection());
     myFixture.testHighlighting(true, false, true, "before" + getTestName(false) + ".java");

java/java-tests/testSrc/com/intellij/java/codeInspection/ImplicitToExplicitClassBackwardMigrationInspectionTest.java

@@ -4,6 +4,8 @@ package com.intellij.java.codeInspection;
 import com.intellij.JavaTestUtil;
 import com.intellij.codeInspection.ImplicitToExplicitClassBackwardMigrationInspection;
 import com.intellij.java.JavaBundle;
+import com.intellij.pom.java.JavaFeature;
+import com.intellij.testFramework.IdeaTestUtil;
 import com.intellij.testFramework.LightProjectDescriptor;
 import com.intellij.testFramework.fixtures.LightJavaCodeInsightFixtureTestCase;
 import org.jetbrains.annotations.NotNull;
@@ -54,4 +56,14 @@ public class ImplicitToExplicitClassBackwardMigrationInspectionTest extends Ligh
                          """);
     doTest();
   }
+
+  public void testConflictModuleImportDemandOverModule() {
+    IdeaTestUtil.withLevel(getModule(), JavaFeature.PACKAGE_IMPORTS_SHADOW_MODULE_IMPORTS.getMinimumLevel(), () -> {
+      myFixture.addClass("""
+                           package test;
+                           public class List {}
+                           """);
+      doTest();
+    });
+  }
 }