[intl] Set NumberFormat.prototype.formatToParts.length to 1

Bug: v8:5244
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I3528b6786be4a820ecb7570df83164fcce80ec5c
Reviewed-on: https://chromium-review.googlesource.com/724209Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48658}

src/bootstrapper.cc

@@ -4430,7 +4430,7 @@ void Genesis::InitializeGlobal_harmony_number_format_to_parts() {
   InstallFunction(number_format_prototype,
                   SimpleCreateFunction(
                       isolate(), name,
-                      Builtins::kNumberFormatPrototypeFormatToParts, 0, false),
+                      Builtins::kNumberFormatPrototypeFormatToParts, 1, false),
                   name);
 }
 

test/test262/test262.status

@@ -322,7 +322,6 @@
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5244
   'intl402/NumberFormat/prototype/formatToParts/*': ['--harmony-number-format-to-parts'],
-  'intl402/NumberFormat/prototype/formatToParts/length': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5327
   'built-ins/TypedArrays/internals/Set/key-is-minus-zero': [FAIL],