DBC: Add missing PC descriptors in static initializers.

runtime/vm/intermediate_language_dbc.cc

Index: runtime/vm/intermediate_language_dbc.cc
diff --git a/runtime/vm/intermediate_language_dbc.cc b/runtime/vm/intermediate_language_dbc.cc
index ababea8d202001755c9830b5c39135409b721a7e..f75f6497bbf9b2fcfe23506679fa8ae158b4c854 100644
--- a/runtime/vm/intermediate_language_dbc.cc
+++ b/runtime/vm/intermediate_language_dbc.cc
@@ -418,13 +418,17 @@ EMIT_NATIVE_CODE(LoadStaticField, 1, Location::RequiresRegister()) {
 }
 
 
-EMIT_NATIVE_CODE(InitStaticField, 1) {
+EMIT_NATIVE_CODE(InitStaticField,
+                 1,
+                 Location::NoLocation(),
+                 LocationSummary::kCall) {
   if (compiler->is_optimizing()) {
     __ Push(locs()->in(0).reg());
     __ InitStaticTOS();
   } else {
     __ InitStaticTOS();
   }
+  compiler->RecordAfterCall(this);
 }