Move Arrays, Collections and Maps into a new library, dart:collections.

runtime/vm/bootstrap.cc

Index: runtime/vm/bootstrap.cc
diff --git a/runtime/vm/bootstrap.cc b/runtime/vm/bootstrap.cc
index 1e1ddd72c88e4adf26a283c19009e1c608dcbe46..f71cf5a3a37d36d8eb0677a0ccf2ca28c622d0f2 100644
--- a/runtime/vm/bootstrap.cc
+++ b/runtime/vm/bootstrap.cc
@@ -42,6 +42,13 @@ RawScript* Bootstrap::LoadCoreImplScript(bool patch) {
 }
 
 
+RawScript* Bootstrap::LoadCollectionScript(bool patch) {
+  const char* url = patch ? "dart:collection-patch" : "dart:collection";
+  const char* source = patch ? collection_source_ : collection_source_;
+  return LoadScript(url, source, patch);
+}
+
+
 RawScript* Bootstrap::LoadMathScript(bool patch) {
   const char* url = patch ? "dart:math-patch" : "dart:math";
   const char* source = patch ? math_patch_ : math_source_;