Revert "Rename internal library dart:_collection-dev to dart:_internal."

runtime/lib/invocation_mirror_patch.dart

Index: runtime/lib/invocation_mirror_patch.dart
diff --git a/runtime/lib/invocation_mirror_patch.dart b/runtime/lib/invocation_mirror_patch.dart
index 3f76e4e7b2a53abd0e2b3f2dddd1b199ef1e77b4..a37feb5ff005ffc1d097c74ae24f11068974f275 100644
--- a/runtime/lib/invocation_mirror_patch.dart
+++ b/runtime/lib/invocation_mirror_patch.dart
@@ -40,15 +40,15 @@ class _InvocationMirror implements Invocation {
     if (_functionName.startsWith("get:")) {
       _type = _GETTER;
       _memberName =
-          new _collection_dev.Symbol.unvalidated(_functionName.substring(4));
+          new internal.Symbol.unvalidated(_functionName.substring(4));
     } else if (_functionName.startsWith("set:")) {
       _type = _SETTER;
       _memberName =
-          new _collection_dev.Symbol.unvalidated(
+          new internal.Symbol.unvalidated(
               _functionName.substring(4) + "=");
     } else {
       _type = _isSuperInvocation ? (_SUPER << _CALL_SHIFT) | _METHOD : _METHOD;
-      _memberName = new _collection_dev.Symbol.unvalidated(_functionName);
+      _memberName = new internal.Symbol.unvalidated(_functionName);
     }
   }
 
@@ -84,7 +84,7 @@ class _InvocationMirror implements Invocation {
       for (int i = 0; i < numNamedArguments; i++) {
         String arg_name = _argumentsDescriptor[2 + 2*i];
         var arg_value = _arguments[_argumentsDescriptor[3 + 2*i]];
-        _namedArguments[new _collection_dev.Symbol.unvalidated(arg_name)] =
+        _namedArguments[new internal.Symbol.unvalidated(arg_name)] =
             arg_value;
       }
     }