Update pubspecs and dependencies to get pkgbuild tests working.

third_party/pkg/angular/lib/core/parser/unparser.dart

-library angular.core.parser.unparser;
-
-import 'package:angular/core/parser/syntax.dart';
-
-class Unparser extends Visitor {
-  final StringBuffer buffer;
-  Unparser(this.buffer);
-
-  static String unparse(Expression expression) {
-    StringBuffer buffer = new StringBuffer();
-    Unparser unparser = new Unparser(buffer);
-    unparser.visit(expression);
-    return "$buffer";
-  }
-
-  write(String string) {
-    buffer.write(string);
-  }
-
-  writeArguments(List<Expression> arguments) {
-    write('(');
-    for (int i = 0; i < arguments.length; i++) {
-      if (i != 0) write(',');
-      visit(arguments[i]);
-    }
-    write(')');
-  }
-
-  visitChain(Chain chain) {
-    for (int i = 0; i < chain.expressions.length; i++) {
-      if (i != 0) write(';');
-      visit(chain.expressions[i]);
-    }
-  }
-
-  visitFilter(Filter filter) {
-    write('(');
-    visit(filter.expression);
-    write('|${filter.name}');
-    for (int i = 0; i < filter.arguments.length; i++) {
-      write(' :');
-      visit(filter.arguments[i]);
-    }
-    write(')');
-  }
-
-  visitAssign(Assign assign) {
-    visit(assign.target);
-    write('=');
-    visit(assign.value);
-  }
-
-  visitConditional(Conditional conditional) {
-    visit(conditional.condition);
-    write('?');
-    visit(conditional.yes);
-    write(':');
-    visit(conditional.no);
-  }
-
-  visitAccessScope(AccessScope access) {
-    write(access.name);
-  }
-
-  visitAccessMember(AccessMember access) {
-    visit(access.object);
-    write('.${access.name}');
-  }
-
-  visitAccessKeyed(AccessKeyed access) {
-    visit(access.object);
-    write('[');
-    visit(access.key);
-    write(']');
-  }
-
-  visitCallScope(CallScope call) {
-    write(call.name);
-    writeArguments(call.arguments);
-  }
-
-  visitCallFunction(CallFunction call) {
-    visit(call.function);
-    writeArguments(call.arguments);
-  }
-
-  visitCallMember(CallMember call) {
-    visit(call.object);
-    write('.${call.name}');
-    writeArguments(call.arguments);
-  }
-
-  visitPrefix(Prefix prefix) {
-    write('(${prefix.operation}');
-    visit(prefix.expression);
-    write(')');
-  }
-
-  visitBinary(Binary binary) {
-    write('(');
-    visit(binary.left);
-    write(binary.operation);
-    visit(binary.right);
-    write(')');
-  }
-
-  visitLiteralPrimitive(LiteralPrimitive literal) {
-    write("${literal.value}");
-  }
-
-  visitLiteralArray(LiteralArray literal) {
-    write('[');
-    for (int i = 0; i < literal.elements.length; i++) {
-      if (i != 0) write(',');
-      visit(literal.elements[i]);
-    }
-    write(']');
-  }
-
-  visitLiteralObject(LiteralObject literal) {
-    write('{');
-    List<String> keys = literal.keys;
-    for (int i = 0; i < keys.length; i++) {
-      if (i != 0) write(',');
-      write("'${keys[i]}':");
-      visit(literal.values[i]);
-    }
-    write('}');
-  }
-
-  visitLiteralString(LiteralString literal) {
-    String escaped = literal.value.replaceAll("'", "\\'");
-    write("'$escaped'");
-  }
-}