Remove cancel and make crash exit with code 253.

sdk/lib/_internal/compiler/implementation/patch_parser.dart

Index: sdk/lib/_internal/compiler/implementation/patch_parser.dart
diff --git a/sdk/lib/_internal/compiler/implementation/patch_parser.dart b/sdk/lib/_internal/compiler/implementation/patch_parser.dart
index ea8ba1e26b8c8c827287cc5d0edaab526cd94191..46e3bb0a81af445fd659d2f15b17c03ece3c9a0f 100644
--- a/sdk/lib/_internal/compiler/implementation/patch_parser.dart
+++ b/sdk/lib/_internal/compiler/implementation/patch_parser.dart
@@ -133,8 +133,9 @@ class PatchParserTask extends leg.CompilerTask {
    * patches.
    */
   Future patchLibrary(leg.LibraryDependencyHandler handler,
-                    Uri patchUri, LibraryElement originLibrary) {
-    return compiler.readScript(patchUri, null).then((leg.Script script) {
+                      Uri patchUri, LibraryElement originLibrary) {
+    return compiler.readScript(originLibrary, patchUri)
+        .then((leg.Script script) {
       var patchLibrary = new LibraryElementX(script, null, originLibrary);
       return compiler.withCurrentElement(patchLibrary, () {
         handler.registerNewLibrary(patchLibrary);
@@ -440,8 +441,8 @@ void patchClass(leg.DiagnosticListener listener,
                  ClassElement origin,
                  ClassElement patch) {
   if (origin.isPatched) {
-    listener.internalErrorOnElement(
-        origin, "Patching the same class more than once.");
+    listener.internalError(origin,
+        "Patching the same class more than once.");
   }
   // TODO(johnniwinther): Change to functions on the ElementX class.
   origin.patch = patch;
@@ -536,11 +537,11 @@ void patchFunction(leg.DiagnosticListener listener,
     return;
   }
   if (origin.isPatched) {
-    listener.internalErrorOnElement(origin,
+    listener.internalError(origin,
         "Trying to patch a function more than once.");
   }
   if (origin.cachedNode != null) {
-    listener.internalErrorOnElement(origin,
+    listener.internalError(origin,
         "Trying to patch an already compiled function.");
   }
   // Don't just assign the patch field. This also updates the cachedNode.