Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler"

pkg/compiler/lib/src/js_emitter/old_emitter/declarations.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of dart2js.js_emitter;
-
-/// Enables debugging of fast/slow objects using V8-specific primitives.
-const DEBUG_FAST_OBJECTS = false;
-
-/**
- * Call-back for adding stub [function] for [selector].
- */
-typedef void AddStubFunction(Selector selector, jsAst.Fun function);
-
-/**
- * Call-back for adding property with [name] and [value].
- */
-typedef jsAst.Property AddPropertyFunction(String name, jsAst.Expression value);
-
-/**
- * [member] is a field (instance, static, or top level).
- *
- * [name] is the field name that the [Namer] has picked for this field's
- * storage, that is, the JavaScript property name.
- *
- * [accessorName] is the name of the accessor. For instance fields this is
- * mostly the same as [name] except when [member] is shadowing a field in its
- * superclass.  For other fields, they are rarely the same.
- *
- * [needsGetter] and [needsSetter] represent if a getter or a setter
- * respectively is needed.  There are many factors in this, for example, if the
- * accessor can be inlined.
- *
- * [needsCheckedSetter] indicates that a checked getter is needed, and in this
- * case, [needsSetter] is always false. [needsCheckedSetter] is only true when
- * type assertions are enabled (checked mode).
- */
-typedef void AcceptField(VariableElement member,
-                         String name,
-                         String accessorName,
-                         bool needsGetter,
-                         bool needsSetter,
-                         bool needsCheckedSetter);
-
-// Function signatures used in the generation of runtime type information.
-typedef void FunctionTypeSignatureEmitter(Element method,
-                                          FunctionType methodType);
-
-typedef void SubstitutionEmitter(Element element, {bool emitNull});
-
-const String GENERATED_BY = """
-// Generated by dart2js, the Dart to JavaScript compiler.
-""";
-
-const String HOOKS_API_USAGE = """
-// The code supports the following hooks:
-// dartPrint(message):
-//    if this function is defined it is called instead of the Dart [print]
-//    method.
-//
-// dartMainRunner(main, args):
-//    if this function is defined, the Dart [main] method will not be invoked
-//    directly. Instead, a closure that will invoke [main], and its arguments
-//    [args] is passed to [dartMainRunner].
-""";
-
-// Compact field specifications.  The format of the field specification is
-// <accessorName>:<fieldName><suffix> where the suffix and accessor name
-// prefix are optional.  The suffix directs the generation of getter and
-// setter methods.  Each of the getter and setter has two bits to determine
-// the calling convention.  Setter listed below, getter is similar.
-//
-//     00: no setter
-//     01: function(value) { this.field = value; }
-//     10: function(receiver, value) { receiver.field = value; }
-//     11: function(receiver, value) { this.field = value; }
-//
-// The suffix encodes 4 bits using three ASCII ranges of non-identifier
-// characters.
-const FIELD_CODE_CHARACTERS = r"<=>?@{|}~%&'()*";
-const NO_FIELD_CODE = 0;
-const FIRST_FIELD_CODE = 1;
-const RANGE1_FIRST = 0x3c;   //  <=>?@    encodes 1..5
-const RANGE1_LAST = 0x40;
-const RANGE2_FIRST = 0x7b;   //  {|}~     encodes 6..9
-const RANGE2_LAST = 0x7e;
-const RANGE3_FIRST = 0x25;   //  %&'()*+  encodes 10..16
-const RANGE3_LAST = 0x2b;