Allow setting breakpoints in function literal field initializers under --dfe.

runtime/vm/kernel_to_il.h

Index: runtime/vm/kernel_to_il.h
diff --git a/runtime/vm/kernel_to_il.h b/runtime/vm/kernel_to_il.h
index 1d60daf6b6ad5e30023587213e006cb49414f2eb..7510ef2946ee930b90556ea38a90df64ade65d5f 100644
--- a/runtime/vm/kernel_to_il.h
+++ b/runtime/vm/kernel_to_il.h
@@ -262,6 +262,12 @@ class ActiveMemberScope {
 class TranslationHelper {
  public:
   explicit TranslationHelper(dart::Thread* thread);
+
+  TranslationHelper(dart::Thread* thread,
+                    dart::RawTypedData* string_offsets,
+                    dart::RawTypedData* string_data,
+                    dart::RawTypedData* canonical_names);
+
   virtual ~TranslationHelper() {}
 
   Thread* thread() { return thread_; }