SimplifyBooleanExpression: Fix negation generation for xor case

GitOrigin-RevId: a6072460618ac0a7c6c29f0ad61c0bdde4d52318

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/SimplifyBooleanExpressionFix.java

@@ -479,7 +479,7 @@ public class SimplifyBooleanExpressionFix extends LocalQuickFixOnPsiElement {
             if (expressions.size() > 1) {
               simplifiedText = "!(" + simplifiedText + ")";
             } else {
-              simplifiedText = "!" + simplifiedText;
+              simplifiedText = BoolUtils.getNegatedExpressionText(expressions.get(0));
             }
           }
           resultExpression = JavaPsiFacade.getElementFactory(expression.getProject()).createExpressionFromText(simplifiedText, expression);

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/simplifyBooleanExpression/afterXor5.java

@@ -0,0 +1,6 @@
+// "Simplify boolean expression" "true"
+class A {
+    void foo(int x) {
+        boolean a = x <= 5;
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/simplifyBooleanExpression/beforeXor5.java

@@ -0,0 +1,6 @@
+// "Simplify boolean expression" "true"
+class A {
+    void foo(int x) {
+        boolean a = true<caret> ^ x > 5;
+    }
+}