SimplifyBooleanExpressionAction: do not warn on x = (true)

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

@@ -0,0 +1,7 @@
+// "Simplify boolean expression" "false"
+class X {
+    void f() {
+        boolean x;
+        x = (<caret>false); // Another action "Remove redundant parentheses" is ok here
+    }
+}