[Java. Intention Actions] Do braces error handling in create field action only when there is implicit class

IDEA-361230

GitOrigin-RevId: 7526d43c90f7d3ebc4edad95d8b31f2e6b42c1fc

java/java-impl/src/com/intellij/lang/java/actions/CreateFieldActionBase.kt

@@ -9,10 +9,7 @@ import com.intellij.lang.jvm.actions.JvmActionGroup
 import com.intellij.lang.jvm.actions.JvmGroupIntentionAction
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.project.Project
-import com.intellij.psi.PsiClass
-import com.intellij.psi.PsiErrorElement
-import com.intellij.psi.PsiFile
-import com.intellij.psi.PsiMethod
+import com.intellij.psi.*
 import com.intellij.psi.util.PsiTreeUtil
 
 internal abstract class CreateFieldActionBase(
@@ -30,6 +27,7 @@ internal abstract class CreateFieldActionBase(
   }
 
   private fun isClassBodyValid(target: PsiClass): Boolean {
+    if (target !is PsiImplicitClass) return true
     if (target.lastChild is PsiErrorElement) return false
     return target.children
       .asSequence()

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createFieldFromUsage/afterAbstractClassIncorrectCode.java

@@ -0,0 +1,16 @@
+// "Create field 'x' in 'SampleClass'" "true-preview"
+
+abstract public class SampleClass {
+
+    private int x;
+
+    void bar(int t) {
+    this.x = 1;
+  }
+
+  abstract void foo();
+
+  void foo() {
+  }
+
+

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createFieldFromUsage/afterFromUnfinishedAnonymousClass.java

@@ -0,0 +1,7 @@
+// "Create field 'i' in 'A'" "true-preview"
+class A {
+    private int i<caret>;
+    Object o = new Object() {
+
+    public void f(A a) {
+      a.i = 0;

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createFieldFromUsage/beforeAbstractClassIncorrectCode.java

@@ -1,4 +1,4 @@
-// "Create field 'x' in 'SampleClass'" "false"
+// "Create field 'x' in 'SampleClass'" "true-preview"
 
 abstract public class SampleClass {
 

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createFieldFromUsage/beforeFromUnfinishedAnonymousClass.java

@@ -1,4 +1,4 @@
-// "Create field 'i' in 'A'" "false"
+// "Create field 'i' in 'A'" "true-preview"
 class A {
     Object o = new Object() {