Implement switch statement, without the "complex switch statement" (aka switch statement with conti…

pkg/compiler/lib/src/kernel/kernel_visitor.dart

Index: pkg/compiler/lib/src/kernel/kernel_visitor.dart
diff --git a/pkg/compiler/lib/src/kernel/kernel_visitor.dart b/pkg/compiler/lib/src/kernel/kernel_visitor.dart
index 6a663b01c4cc12299b6c335c7879e15d7f3c73ce..17594db6ed27c63ae5ed909922bd8bc7102b2393 100644
--- a/pkg/compiler/lib/src/kernel/kernel_visitor.dart
+++ b/pkg/compiler/lib/src/kernel/kernel_visitor.dart
@@ -850,17 +850,17 @@ class KernelVisitor extends Object
 
   @override
   ir.BoolLiteral visitLiteralBool(LiteralBool node) {
-    return new ir.BoolLiteral(node.value);
+    return associateNode(new ir.BoolLiteral(node.value), node);
   }
 
   @override
   ir.DoubleLiteral visitLiteralDouble(LiteralDouble node) {
-    return new ir.DoubleLiteral(node.value);
+    return associateNode(new ir.DoubleLiteral(node.value), node);
   }
 
   @override
   ir.IntLiteral visitLiteralInt(LiteralInt node) {
-    return new ir.IntLiteral(node.value);
+    return associateNode(new ir.IntLiteral(node.value), node);
   }
 
   @override
@@ -911,7 +911,8 @@ class KernelVisitor extends Object
   @override
   ir.Expression visitLiteralString(LiteralString node) {
     if (node.dartString == null) return new ir.InvalidExpression();
-    return new ir.StringLiteral(node.dartString.slowToString());
+    return associateNode(new ir.StringLiteral(node.dartString.slowToString()),
+        node);
   }
 
   @override
@@ -1040,10 +1041,7 @@ class KernelVisitor extends Object
         }
       }
       if (statements.isEmpty || fallsThrough(statements.last)) {
-        if (isLastCase) {
-          statements.add(new ir.BreakStatement(
-              getBreakTarget(elements.getTargetDefinition(node))));
-        } else {
+        if (!isLastCase) {
           statements.add(new ir.ExpressionStatement(new ir.Throw(
               new ir.ConstructorInvocation(
                   kernel.getFallThroughErrorConstructor(),
@@ -1259,7 +1257,7 @@ class KernelVisitor extends Object
   @override
   ir.InvocationExpression visitConstConstructorInvoke(
       NewExpression node, ConstructedConstantExpression constant, _) {
-    return buildConstructorInvoke(node, isConst: true);
+    return associateNode(buildConstructorInvoke(node, isConst: true), node);
   }
 
   @override