8325189: Enable this-escape javac warning in java.base

Reviewed-by: alanb, erikj, naoto, smarks, ihse, joehw, lancea, weijun

src/java.base/share/classes/java/lang/ExceptionInInitializerError.java

@@ -52,6 +52,7 @@ public class ExceptionInInitializerError extends LinkageError {
      * throwable object.
      * A detail message is a String that describes this particular exception.
      */
+    @SuppressWarnings("this-escape")
     public ExceptionInInitializerError() {
         initCause(null); // Disallow subsequent initCause
     }