Give up tracing of a function if one of its closurizations escapes tracing.

sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart

Index: sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart
diff --git a/sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart b/sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart
index 7d882cd9b4a2907226a73a94d64010ed9688d7fb..9ac5813975a5bc92f696d9dc53c877b3a9daf877 100644
--- a/sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart
+++ b/sdk/lib/_internal/compiler/implementation/inferrer/closure_tracer.dart
@@ -13,13 +13,6 @@ class ClosureTracerVisitor extends TracerVisitor<ApplyableTypeInformation> {
       : super(tracedType, inferrer);
 
   void run() {
-    for (FunctionElement e in tracedElements) {
-      e.functionSignature.forEachParameter((Element parameter) {
-        ElementTypeInformation info =
-            inferrer.types.getInferredTypeOf(parameter);
-        info.maybeResume();
-      });
-    }
     analyze();
     if (!continueAnalyzing) return;
     callsToAnalyze.forEach(analyzeCall);