Standardize on using "kind" to distinguish sub-varieties of a type.

runtime/observatory/tests/service/break_on_activation_test.dart

Index: runtime/observatory/tests/service/break_on_activation_test.dart
diff --git a/runtime/observatory/tests/service/break_on_activation_test.dart b/runtime/observatory/tests/service/break_on_activation_test.dart
index 1a1573cf52fb57b118328e1e056bcc1ed879376b..128017fcf9ee6cba29dc51617365ca0216c12285 100644
--- a/runtime/observatory/tests/service/break_on_activation_test.dart
+++ b/runtime/observatory/tests/service/break_on_activation_test.dart
@@ -57,7 +57,7 @@ var tests = [
 
   var subscription;
   subscription = isolate.vm.events.stream.listen((ServiceEvent event) {
-    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+    if (event.kind == ServiceEvent.kPauseBreakpoint) {
       print("Hit breakpoint ${event.breakpoint}");
       breaksHit++;
       isolate.resume();
@@ -100,7 +100,7 @@ var tests = [
 
   var subscription;
   subscription = isolate.vm.events.stream.listen((ServiceEvent event) {
-    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+    if (event.kind == ServiceEvent.kPauseBreakpoint) {
       print("Hit breakpoint ${event.breakpoint}");
       breaksHit++;
       isolate.resume();
@@ -142,7 +142,7 @@ var tests = [
 
   var subscription;
   subscription = isolate.vm.events.stream.listen((ServiceEvent event) {
-    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+    if (event.kind == ServiceEvent.kPauseBreakpoint) {
       print("Hit breakpoint ${event.breakpoint}");
       breaksHit++;
       isolate.resume();