Address some comments and clean up

Change-Id: I538cf204f1c89d5fc81f8fc5e5800fcf1cf87359
diff --git a/runtime/debugger.cc b/runtime/debugger.cc
index 1865516..e1e130b 100644
--- a/runtime/debugger.cc
+++ b/runtime/debugger.cc
@@ -2094,7 +2094,7 @@
     case kWaitingInMainDebuggerLoop:
     case kWaitingInMainSignalCatcherLoop:
     case kWaitingPerformingGc:
-    case kWaitingWeakRootRead:
+    case kWaitingWeakGcRootRead:
     case kWaiting:
       return JDWP::TS_WAIT;
       // Don't add a 'default' here so the compiler can spot incompatible enum changes.