Debugger: allow recompiling toplevel code for debugging.

src/compiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 1437 matching lines @@
     RecordFunctionCompilation(Logger::FUNCTION_TAG, &info, result);
     result->set_allows_lazy_compilation(literal->AllowsLazyCompilation());
     result->set_allows_lazy_compilation_without_context(allow_lazy_without_ctx);
 
     // Set the expected number of properties for instances and return
     // the resulting function.
     SetExpectedNofPropertiesFromEstimate(result,
                                          literal->expected_property_count());
     live_edit_tracker.RecordFunctionInfo(result, literal, info.zone());
     return result;
-  } else {
-    // We may have additional data from compilation now.
+  } else if (!lazy) {
+    // We have additional data from compilation now.
     DCHECK(!existing->is_compiled());
     existing->ReplaceCode(*info.code());
     existing->set_scope_info(*scope_info);
     existing->set_feedback_vector(*info.feedback_vector());
-    return existing;
   }
+  return existing;
 }
 
 
 MaybeHandle<Code> Compiler::GetOptimizedCode(Handle<JSFunction> function,
                                              Handle<Code> current_code,
                                              ConcurrencyMode mode,
                                              BailoutId osr_ast_id) {
   Handle<Code> cached_code;
   if (GetCodeFromOptimizedCodeMap(
           function, osr_ast_id).ToHandle(&cached_code)) {
@@ skipping 150 matching lines @@
 
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8