[compiler] Simplify Compiler::CompileDebugCode a bit.

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/ast-numbering.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 1111 matching lines @@
 
   DCHECK(function->code()->kind() == Code::FUNCTION ||
          function->code()->kind() == Code::OPTIMIZED_FUNCTION ||
          (function->code()->is_interpreter_entry_trampoline() &&
           function->shared()->HasBytecodeArray()) ||
          function->IsInOptimizationQueue());
   return true;
 }
 
 bool Compiler::CompileDebugCode(Handle<JSFunction> function) {
-  Handle<SharedFunctionInfo> shared(function->shared());
-  if (IsEvalToplevel(shared)) {
-    Handle<Script> script(Script::cast(shared->script()));
-    Handle<Context> context(function->context());
-
-    Zone zone(function->GetIsolate()->allocator());
-    ParseInfo parse_info(&zone, script);
-    CompilationInfo info(&parse_info, Handle<JSFunction>::null());
-
+  Zone zone(function->GetIsolate()->allocator());
+  ParseInfo parse_info(&zone, function);
+  CompilationInfo info(&parse_info, Handle<JSFunction>::null());
+  if (IsEvalToplevel(handle(function->shared()))) {
     parse_info.set_eval();
-    parse_info.set_context(context);
-    parse_info.set_shared_info(shared);
-    if (context->IsNativeContext()) parse_info.set_global();
+    if (function->context()->IsNativeContext()) parse_info.set_global();
     parse_info.set_toplevel();
     parse_info.set_allow_lazy_parsing(false);
-    parse_info.set_language_mode(shared->language_mode());
-    parse_info.set_parse_restriction(NO_PARSE_RESTRICTION);
-    return CompileForDebugging(&info);
-  } else {
-    CompilationInfoWithZone info(function);
-    return CompileForDebugging(&info);
+    parse_info.set_lazy(false);
   }
+  return CompileForDebugging(&info);
 }
 
 bool Compiler::CompileDebugCode(Handle<SharedFunctionInfo> shared) {
   DCHECK(shared->allows_lazy_compilation_without_context());
   DCHECK(!IsEvalToplevel(shared));
   Zone zone(shared->GetIsolate()->allocator());
   ParseInfo parse_info(&zone, shared);
   CompilationInfo info(&parse_info, Handle<JSFunction>::null());
   return CompileForDebugging(&info);
 }
@@ skipping 517 matching lines @@
     MaybeHandle<Code> code;
     if (cached.code != nullptr) code = handle(cached.code);
     Handle<Context> native_context(function->context()->native_context());
     SharedFunctionInfo::AddToOptimizedCodeMap(shared, native_context, code,
                                               literals, BailoutId::None());
   }
 }
 
 }  // namespace internal
 }  // namespace v8