Issue 9845. Compare runtime types using ==.

pkg/analyzer_experimental/lib/src/generated/java_core.dart

 library java.core;
 
 import "dart:math" as math;
 import "dart:uri";
 import "dart:collection" show ListBase;
 
 class JavaSystem {
   static int currentTimeMillis() {
     return (new DateTime.now()).millisecondsSinceEpoch;
   }
@@ skipping 158 matching lines @@
     } else {
       sb.writeCharCode(c);
     }
   }
   return sb.toString();
 }
 
 abstract class PrintWriter {
   void print(x);
 
-  void println() {
+  void newLine() {
     this.print('\n');
   }
 
-  void printlnObject(String s) {
+  void println(String s) {
     this.print(s);
-    this.println();
+    this.newLine();
   }
 
   void printf(String fmt, List args) {
     this.print(_printf(fmt, args));
   }
 }
 
 class PrintStringWriter extends PrintWriter {
   final StringBuffer _sb = new StringBuffer();
 
@@ skipping 261 matching lines @@
       }
     } else if (sb.length > newLength) {
       var s = sb.toString().substring(0, newLength);
       sb = new StringBuffer(s);
     }
   }
   void clear() {
     sb = new StringBuffer();
   }
 }