Sundry service protocol cleanups before version 1.0.

runtime/observatory/tests/service/string_escaping_test.dart

Index: runtime/observatory/tests/service/string_escaping_test.dart
diff --git a/runtime/observatory/tests/service/string_escaping_test.dart b/runtime/observatory/tests/service/string_escaping_test.dart
index 1f702f08d2a12809a11e821f71b4cedaaff9746e..d3420dbf315b981266f4eac4b6b141dea6d69b90 100644
--- a/runtime/observatory/tests/service/string_escaping_test.dart
+++ b/runtime/observatory/tests/service/string_escaping_test.dart
@@ -54,15 +54,19 @@ var tests = [
   isolate.rootLibrary.load().then((Library lib) {
     expectFullString(String varName, String varValueAsString) {
       Field field = lib.variables.singleWhere((v) => v.name == varName);
-      Instance value = field.value;
-      expect(value.valueAsString, equals(varValueAsString));
-      expect(value.valueAsStringIsTruncated, isFalse);
+      field.load().then((_) {
+        Instance value = field.staticValue;
+        expect(value.valueAsString, equals(varValueAsString));
+        expect(value.valueAsStringIsTruncated, isFalse);
+      });
     }
     expectTruncatedString(String varName, String varValueAsString) {
       Field field = lib.variables.singleWhere((v) => v.name == varName);
-      Instance value = field.value;
-      expect(varValueAsString, startsWith(value.valueAsString));
-      expect(value.valueAsStringIsTruncated, isTrue);
+      field.load().then((_) {
+        Instance value = field.staticValue;
+        expect(varValueAsString, startsWith(value.valueAsString));
+        expect(value.valueAsStringIsTruncated, isTrue);
+      });
     }
 
     script();  // Need to initialize variables in the testing isolate.