Revert "dart2js: add compiler builtins to the core-runtime."

sdk/lib/_internal/compiler/js_lib/js_helper.dart

Index: sdk/lib/_internal/compiler/js_lib/js_helper.dart
diff --git a/sdk/lib/_internal/compiler/js_lib/js_helper.dart b/sdk/lib/_internal/compiler/js_lib/js_helper.dart
index defef1ed853b62b3be71b187b60addc588987a7f..bb22a2fdce13d5954ddecb7bc395941c2aa2fca4 100644
--- a/sdk/lib/_internal/compiler/js_lib/js_helper.dart
+++ b/sdk/lib/_internal/compiler/js_lib/js_helper.dart
@@ -16,7 +16,6 @@ import 'dart:_js_embedded_names' show
     INTERCEPTORS_BY_TAG,
     IS_HUNK_LOADED,
     IS_HUNK_INITIALIZED,
-    JsBuiltin,
     JsGetName,
     LEAF_TAGS,
     METADATA,
@@ -43,20 +42,22 @@ import 'dart:async' show
 import 'dart:_foreign_helper' show
     DART_CLOSURE_TO_JS,
     JS,
-    JS_BUILTIN,
     JS_CALL_IN_ISOLATE,
     JS_CONST,
     JS_CURRENT_ISOLATE,
     JS_CURRENT_ISOLATE_CONTEXT,
+    JS_DART_OBJECT_CONSTRUCTOR,
     JS_EFFECT,
     JS_EMBEDDED_GLOBAL,
+    JS_FUNCTION_CLASS_NAME,
     JS_FUNCTION_TYPE_NAMED_PARAMETERS_TAG,
     JS_FUNCTION_TYPE_OPTIONAL_PARAMETERS_TAG,
     JS_FUNCTION_TYPE_REQUIRED_PARAMETERS_TAG,
     JS_FUNCTION_TYPE_RETURN_TYPE_TAG,
+    JS_FUNCTION_TYPE_TAG,
     JS_FUNCTION_TYPE_VOID_RETURN_TAG,
-    JS_GET_FLAG,
     JS_GET_NAME,
+    JS_GET_FLAG,
     JS_HAS_EQUALS,
     JS_IS_INDEXABLE_FIELD_NAME,
     JS_NULL_CLASS_NAME,
@@ -92,47 +93,6 @@ part 'linked_hash_map.dart';
 abstract class InternalMap {
 }
 
-/// Returns true if the given [type] is a function type object.
-// TODO(floitsch): move this to foreign_helper.dart or similar.
-@ForceInline()
-bool isDartFunctionType(Object type) {
-  return JS_BUILTIN('returns:bool;effects:none;depends:none',
-                    JsBuiltin.isFunctionType, type);
-}
-
-
-/// Creates a function type object.
-// TODO(floitsch): move this to foreign_helper.dart or similar.
-@ForceInline()
-bool createDartFunctionType() {
-  return JS_BUILTIN('returns:=Object;effects:none;depends:none',
-                    JsBuiltin.createFunctionType);
-}
-
-/// Returns true if the given [type] is _the_ `Function` type.
-// TODO(floitsch): move this to foreign_helper.dart or similar.
-@ForceInline()
-bool isDartFunctionTypeLiteral(Object type) {
-  return JS_BUILTIN('returns:bool;effects:none;depends:none',
-                    JsBuiltin.isFunctionTypeLiteral, type);
-}
-
-/// Retrieves the class name from type information stored on the constructor of
-/// [type].
-// TODO(floitsch): move this to foreign_helper.dart or similar.
-@ForceInline()
-String getDartTypeName(Object type) {
-  return JS_BUILTIN('String', JsBuiltin.typeName, type);
-}
-
-/// Returns the raw runtime type of the given object [o].
-// TODO(floitsch): move this to foreign_helper.dart or similar.
-@ForceInline()
-Object getRawRuntimeType(Object o) {
-  return JS_BUILTIN('', JsBuiltin.rawRuntimeType, getInterceptor(o));
-}
-
-
 /// No-op method that is called to inform the compiler that preambles might
 /// be needed when executing the resulting JS file in a command-line
 /// JS engine.
@@ -3155,7 +3115,7 @@ class RuntimeFunctionType extends RuntimeType {
   }
 
   toRti() {
-    var result = createDartFunctionType();
+    var result = JS('=Object', '{ #: "dynafunc" }', JS_FUNCTION_TYPE_TAG());
     if (isVoid) {
       JS('', '#[#] = true', result, JS_FUNCTION_TYPE_VOID_RETURN_TAG());
     } else {