Remove GetStackTraceLine

BUG=

Review-Url: https://codereview.chromium.org/2194883002
Cr-Commit-Position: refs/heads/master@{#38215}

src/contexts.h

@@ -102,7 +102,6 @@ enum BindingFlags {
   V(DERIVED_GET_TRAP_INDEX, JSFunction, derived_get_trap)                   \
   V(ERROR_FUNCTION_INDEX, JSFunction, error_function)                       \
   V(EVAL_ERROR_FUNCTION_INDEX, JSFunction, eval_error_function)             \
-  V(GET_STACK_TRACE_LINE_INDEX, JSFunction, get_stack_trace_line_fun)       \
   V(GLOBAL_EVAL_FUN_INDEX, JSFunction, global_eval_fun)                     \
   V(MAKE_ERROR_FUNCTION_INDEX, JSFunction, make_error_function)             \
   V(MAP_DELETE_METHOD_INDEX, JSFunction, map_delete)                        \

src/execution.cc

@@ -431,16 +431,26 @@ Handle<String> Execution::GetStackTraceLine(Handle<Object> recv,
                                             Handle<Object> pos,
                                             Handle<Object> is_global) {
   Isolate* isolate = fun->GetIsolate();
-  Handle<Object> args[] = { recv, fun, pos, is_global };
-  MaybeHandle<Object> maybe_result =
-      TryCall(isolate, isolate->get_stack_trace_line_fun(),
-              isolate->factory()->undefined_value(), arraysize(args), args);
-  Handle<Object> result;
-  if (!maybe_result.ToHandle(&result) || !result->IsString()) {
+
+  Handle<JSFunction> ctor =
+      handle(isolate->native_context()->callsite_function(), isolate);
+  Handle<Object> strict_mode = isolate->factory()->ToBoolean(false);
+
+  MaybeHandle<Object> maybe_callsite = CallSiteUtils::Construct(
+      isolate, ctor, ctor, recv, fun, pos, strict_mode);
+  if (maybe_callsite.is_null()) {
+    isolate->clear_pending_exception();
+    return isolate->factory()->empty_string();
+  }
+
+  MaybeHandle<String> maybe_to_string =
+      CallSiteUtils::ToString(isolate, maybe_callsite.ToHandleChecked());
+  if (maybe_to_string.is_null()) {
+    isolate->clear_pending_exception();
     return isolate->factory()->empty_string();
   }
 
-  return Handle<String>::cast(result);
+  return maybe_to_string.ToHandleChecked();
 }
 
 

src/js/messages.js

@@ -248,11 +248,6 @@ utils.SetUpLockedPrototype(Script, [
   ]
 );
 
-
-function GetStackTraceLine(recv, fun, pos, isGlobal) {
-  return new CallSite(recv, fun, pos, false).toString();
-}
-
 // ----------------------------------------------------------------------------
 // Error implementation
 
@@ -293,7 +288,6 @@ function MakeURIError() {
 }
 
 %InstallToContext([
-  "get_stack_trace_line_fun", GetStackTraceLine,
   "make_error_function", MakeGenericError,
   "make_range_error", MakeRangeError,
   "make_type_error", MakeTypeError,