Rollback 6bee780067d3c84bfbc387720a26b0eabe7c2357, restore PrintWriter.

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

Index: pkg/analyzer/lib/src/generated/java_core.dart
diff --git a/pkg/analyzer/lib/src/generated/java_core.dart b/pkg/analyzer/lib/src/generated/java_core.dart
index 382fa0de448723c20a580c382d763d08451a4825..ed0d03f2569a361af5609749b4295d022faaef9d 100644
--- a/pkg/analyzer/lib/src/generated/java_core.dart
+++ b/pkg/analyzer/lib/src/generated/java_core.dart
@@ -39,6 +39,45 @@ String formatList(String pattern, List<Object> arguments) {
   });
 }
 
+/**
+ * Very limited printf implementation, supports only %s and %d.
+ */
+String _printf(String fmt, List args) {
+  StringBuffer sb = new StringBuffer();
+  bool markFound = false;
+  int argIndex = 0;
+  for (int i = 0; i < fmt.length; i++) {
+    int c = fmt.codeUnitAt(i);
+    if (c == 0x25) {
+      if (markFound) {
+        sb.writeCharCode(c);
+        markFound = false;
+      } else {
+        markFound = true;
+      }
+      continue;
+    }
+    if (markFound) {
+      markFound = false;
+      // %d
+      if (c == 0x64) {
+        sb.write(args[argIndex++]);
+        continue;
+      }
+      // %s
+      if (c == 0x73) {
+        sb.write(args[argIndex++]);
+        continue;
+      }
+      // unknown
+      throw new ArgumentError('[$fmt][$i] = 0x${c.toRadixString(16)}');
+    } else {
+      sb.writeCharCode(c);
+    }
+  }
+  return sb.toString();
+}
+
 class Character {
   static const int MAX_VALUE = 0xffff;
   static const int MAX_CODE_POINT = 0x10ffff;
@@ -97,3 +136,30 @@ abstract class Enum<E extends Enum> implements Comparable<E> {
   int compareTo(E other) => ordinal - other.ordinal;
   String toString() => name;
 }
+
+class PrintStringWriter extends PrintWriter {
+  final StringBuffer _sb = new StringBuffer();
+
+  void print(x) {
+    _sb.write(x);
+  }
+
+  String toString() => _sb.toString();
+}
+
+abstract class PrintWriter {
+  void newLine() {
+    this.print('\n');
+  }
+
+  void print(x);
+
+  void printf(String fmt, List args) {
+    this.print(_printf(fmt, args));
+  }
+
+  void println(String s) {
+    this.print(s);
+    this.newLine();
+  }
+}