Emulate compiling a source file in the context of an existing library. Add --debugger-compile flag …

pkg/dev_compiler/lib/js/es6/dart_sdk.js

Index: pkg/dev_compiler/lib/js/es6/dart_sdk.js
diff --git a/pkg/dev_compiler/lib/js/es6/dart_sdk.js b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
index 5114d4a862bff7dbc57d6e2203feeb83e43be1e2..3445e747ede6c710a231b948de694c9917a7f494 100644
--- a/pkg/dev_compiler/lib/js/es6/dart_sdk.js
+++ b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
@@ -533,9 +533,9 @@ let ListOfPathSeg = () => (ListOfPathSeg = dart.constFn(core.List$(svg.PathSeg))
 let ListOfTransform = () => (ListOfTransform = dart.constFn(core.List$(svg.Transform)))();
 let CompleterOfAudioBuffer = () => (CompleterOfAudioBuffer = dart.constFn(async.Completer$(web_audio.AudioBuffer)))();
 let EventStreamProviderOfAudioProcessingEvent = () => (EventStreamProviderOfAudioProcessingEvent = dart.constFn(html.EventStreamProvider$(web_audio.AudioProcessingEvent)))();
+let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
 let StringAndStringToint = () => (StringAndStringToint = dart.constFn(dart.definiteFunctionType(core.int, [core.String, core.String])))();
 let VoidTo_MethodStats = () => (VoidTo_MethodStats = dart.constFn(dart.definiteFunctionType(dart._MethodStats, [])))();
-let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
 let dynamicToString = () => (dynamicToString = dart.constFn(dart.definiteFunctionType(core.String, [dart.dynamic])))();
 let dynamicToListOfString = () => (dynamicToListOfString = dart.constFn(dart.definiteFunctionType(ListOfString(), [dart.dynamic])))();
 let dynamicToList = () => (dynamicToList = dart.constFn(dart.definiteFunctionType(core.List, [dart.dynamic])))();
@@ -1559,6 +1559,43 @@ dart.dcall = function(f, ...args) {
 dart.dgcall = function(f, typeArgs, ...args) {
   return dart._checkAndCall(f, dart._getRuntimeType(f), void 0, typeArgs, args, 'call');
 };
+dart._dhelperRepl = function(object, field, callback) {
+  let rawField = field;
+  if (typeof field == 'symbol') {
+    if (field in object) return callback(field);
+    field = field.toString();
+    field = field.substring('Symbol('.length, field.length - 1);
+  } else if (field.charAt(0) != '_') {
+    return callback(field);
+  }
+  if (field in object) return callback(field);
+  let proto = object;
+  while (proto !== null) {
+    let symbols = Object.getOwnPropertySymbols(proto);
+    let target = 'Symbol(' + field + ')';
+    for (let s = 0; s < symbols.length; s++) {
+      let sym = symbols[s];
+      if (target == sym.toString()) return callback(sym);
+    }
+    proto = proto.__proto__;
+  }
+  return callback(rawField);
+};
+dart.dloadRepl = function(obj, field) {
+  return dart._dhelperRepl(obj, field, dart.fn(resolvedField => dart.dload(obj, resolvedField), dynamicTodynamic()));
+};
+dart.dputRepl = function(obj, field, value) {
+  return dart._dhelperRepl(obj, field, dart.fn(resolvedField => dart.dput(obj, resolvedField, value), dynamicTodynamic()));
+};
+dart._callMethodRepl = function(obj, method, typeArgs, args) {
+  return dart._dhelperRepl(obj, method, dart.fn(resolvedField => dart._callMethod(obj, resolvedField, typeArgs, args, method), dynamicTodynamic()));
+};
+dart.dsendRepl = function(obj, method, ...args) {
+  return dart._callMethodRepl(obj, method, null, args);
+};
+dart.dgsendRepl = function(obj, typeArgs, method, ...args) {
+  return dart._callMethodRepl(obj, method, typeArgs, args);
+};
 dart.getDynamicStats = function() {
   let ret = JSArrayOfListOfObject().of([]);
   let keys = dart._callMethodStats[dartx.keys][dartx.toList]();