Don't dereference handles in DoParseLazy

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 5080fb3c26c0cd2cedd1ebb18c7ab2f65327931f..bdf4f62133e093c3c4da701019bb0064b44e551c 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -58,6 +58,9 @@ class ParseInfo {
   FLAG_ACCESSOR(kAllowLazyParsing, allow_lazy_parsing, set_allow_lazy_parsing)
   FLAG_ACCESSOR(kAstValueFactoryOwned, ast_value_factory_owned,
                 set_ast_value_factory_owned)
+  FLAG_ACCESSOR(kIsNamedExpression, is_named_expression,
+                set_is_named_expression)
+  FLAG_ACCESSOR(kCallsEval, calls_eval, set_calls_eval)
 
 #undef FLAG_ACCESSOR
 
@@ -126,6 +129,26 @@ class ParseInfo {
   uint32_t hash_seed() { return hash_seed_; }
   void set_hash_seed(uint32_t hash_seed) { hash_seed_ = hash_seed; }
 
+  int compiler_hints() const { return compiler_hints_; }
+  void set_compiler_hints(int compiler_hints) {
+    compiler_hints_ = compiler_hints;
+  }
+
+  int start_position() const { return start_position_; }
+  void set_start_position(int start_position) {
+    start_position_ = start_position;
+  }
+
+  int end_position() const { return end_position_; }
+  void set_end_position(int end_position) { end_position_ = end_position; }
+
+  // Getters for individual compiler hints.
+  bool is_declaration() const;
+  bool is_arrow() const;
+  bool is_async() const;
+  bool is_default_constructor() const;
+  FunctionKind function_kind() const;
+
   //--------------------------------------------------------------------------
   // TODO(titzer): these should not be part of ParseInfo.
   //--------------------------------------------------------------------------
@@ -171,8 +194,10 @@ class ParseInfo {
     kParseRestriction = 1 << 6,
     kModule = 1 << 7,
     kAllowLazyParsing = 1 << 8,
+    kIsNamedExpression = 1 << 9,
+    kCallsEval = 1 << 10,
     // ---------- Output flags --------------------------
-    kAstValueFactoryOwned = 1 << 9
+    kAstValueFactoryOwned = 1 << 11
   };
 
   //------------- Inputs to parsing and scope analysis -----------------------
@@ -187,6 +212,9 @@ class ParseInfo {
   UnicodeCache* unicode_cache_;
   uintptr_t stack_limit_;
   uint32_t hash_seed_;
+  int compiler_hints_;
+  int start_position_;
+  int end_position_;
 
   // TODO(titzer): Move handles and isolate out of ParseInfo.
   Isolate* isolate_;
@@ -750,6 +778,7 @@ class Parser : public ParserBase<ParserTraits> {
 
   FunctionLiteral* ParseLazy(Isolate* isolate, ParseInfo* info);
   FunctionLiteral* DoParseLazy(Isolate* isolate, ParseInfo* info,
+                               const AstRawString* raw_name,
                                Utf16CharacterStream* source);
 
   // Called by ParseProgram after setting up the scanner.