[compiler] Improve contract for Compiler::CompileDebugCode.

src/debug/liveedit.h

Index: src/debug/liveedit.h
diff --git a/src/debug/liveedit.h b/src/debug/liveedit.h
index 7c483130ef3d5dfda7b05b3c7e7d673b6eca0e03..32328d9da7d9cd3dae2a22b80db725a9518e41dd 100644
--- a/src/debug/liveedit.h
+++ b/src/debug/liveedit.h
@@ -292,7 +292,7 @@ class FunctionInfoWrapper : public JSArrayBasedStruct<FunctionInfoWrapper> {
                             int end_position, int param_num, int literal_count,
                             int parent_index);
 
-  void SetFunctionCode(Handle<Code> function_code,
+  void SetFunctionCode(Handle<AbstractCode> function_code,
                        Handle<HeapObject> code_scope_info);
 
   void SetFunctionScopeInfo(Handle<Object> scope_info_array) {
@@ -309,7 +309,7 @@ class FunctionInfoWrapper : public JSArrayBasedStruct<FunctionInfoWrapper> {
     return this->GetSmiValueField(kParentIndexOffset_);
   }
 
-  Handle<Code> GetFunctionCode();
+  Handle<AbstractCode> GetFunctionCode();
 
   MaybeHandle<TypeFeedbackMetadata> GetFeedbackMetadata();