Assign unique IDs to FunctionLiterals

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 9c63ca055a330fc56f72cc705eba17ab66d30b21..b315c5195e0e678f04be46174c86b7c69a918e19 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -995,6 +995,7 @@ Handle<SharedFunctionInfo> CompileToplevel(CompilationInfo* info) {
     result = NewSharedFunctionInfoForLiteral(isolate, lit, script);
     result->set_is_toplevel(true);
     parse_info->set_shared_info(result);
+    parse_info->set_function_literal_id(result->function_literal_id());
 
     // Compile the code.
     if (!CompileUnoptimizedCode(info)) {
@@ -1584,6 +1585,7 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfo(
   CompilationInfo info(&parse_info, Handle<JSFunction>::null());
   parse_info.set_literal(literal);
   parse_info.set_shared_info(result);
+  parse_info.set_function_literal_id(result->function_literal_id());
   parse_info.set_language_mode(literal->scope()->language_mode());
   parse_info.set_ast_value_factory(
       outer_info->parse_info()->ast_value_factory());