Share test-source between full emitter and fast startup emitter dill tests.

tests/compiler/dart2js/kernel/compile_from_dill_test.dart

Index: tests/compiler/dart2js/kernel/compile_from_dill_test.dart
diff --git a/tests/compiler/dart2js/kernel/compile_from_dill_test.dart b/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
index a2765bed59fb222d1d6bf83d35a4f50bf2a8f9c3..575b8a758fb3ac6678829d1d9f144698f3b422c4 100644
--- a/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
+++ b/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
@@ -12,63 +12,6 @@ import '../serialization/helper.dart';
 
 import 'compile_from_dill_test_helper.dart';
 
-const SOURCE = const {
-  'main.dart': '''
-foo({named}) => 1;
-bar(a) => !a;
-class Class {
-  var field;
-  static var staticField;
-
-  Class();
-  Class.named(this.field);
-
-  method() {}
-}
-
-class SubClass extends Class {
-  method() {
-    super.method();
-  }  
-}
-main() {
-  foo();
-  bar(true);
-  [];
-  {};
-  new Object();
-  new Class.named('');
-  new SubClass().method();
-  Class.staticField;
-  var x = null;
-  var y1 = x == null;
-  var y2 = null == x;
-  var z1 = x?.toString();
-  var z2 = x ?? y1;
-  var z3 = x ??= y2;
-  var w = x == null ? null : x.toString();
-  for (int i = 0; i < 10; i++) {
-    if (i == 5) continue;
-    x = i;
-    if (i == 5) break;
-  }
-  int i = 0;
-  while (i < 10) {
-    if (i == 5) continue;
-    x = i;
-    if (i == 5) break;
-  }
-  for (var v in [3, 5]) {
-    if (v == 5) continue;
-    x = v;
-    if (v == 5) break;
-  }
-  print(x);
-  return x;
-}
-'''
-};
-
 main(List<String> args) {
   asyncTest(() async {
     await mainInternal(args);