Remove cancel and make crash exit with code 253.

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

Index: sdk/lib/_internal/compiler/implementation/compile_time_constants.dart
diff --git a/sdk/lib/_internal/compiler/implementation/compile_time_constants.dart b/sdk/lib/_internal/compiler/implementation/compile_time_constants.dart
index b02a293ca13667ac770170d596209789721bf522..121fe5b45757a07ae96c40e480d2d9acefeed8dd 100644
--- a/sdk/lib/_internal/compiler/implementation/compile_time_constants.dart
+++ b/sdk/lib/_internal/compiler/implementation/compile_time_constants.dart
@@ -226,8 +226,7 @@ class ConstantHandler extends CompilerTask {
   Constant getInitialValueFor(VariableElement element) {
     Constant initialValue = initialVariableValues[element.declaration];
     if (initialValue == null) {
-      compiler.internalError("No initial value for given element",
-                             element: element);
+      compiler.internalError(element, "No initial value for given element.");
     }
     return initialValue;
   }
@@ -502,7 +501,7 @@ class CompileTimeConstantEvaluator extends Visitor {
           folded = constantSystem.bitNot.fold(receiverConstant);
           break;
         default:
-          compiler.internalError("Unexpected operator.", node: op);
+          compiler.internalError(op, "Unexpected operator.");
           break;
       }
       if (folded == null) return signalNotCompileTimeConstant(send);
@@ -848,7 +847,7 @@ class ConstructorEvaluator extends CompileTimeConstantEvaluator {
     if (Elements.isLocal(element)) {
       Constant constant = definitions[element];
       if (constant == null) {
-        compiler.internalError("Local variable without value", node: send);
+        compiler.internalError(send, "Local variable without value.");
       }
       return constant;
     }
@@ -972,8 +971,8 @@ class ConstructorEvaluator extends CompileTimeConstantEvaluator {
         FunctionElement targetConstructor =
             superClass.lookupConstructor(selector);
         if (targetConstructor == null) {
-          compiler.internalError("no default constructor available",
-                                 node: functionNode);
+          compiler.internalError(functionNode,
+              "No default constructor available.");
         }
         List<Constant> compiledArguments = evaluateArgumentsToConstructor(
             functionNode, selector, const Link<Node>(), targetConstructor);