Short curcuit the inlining when code in the middle of an expression is aborting.

sdk/lib/_internal/compiler/implementation/ssa/from_ir_builder.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of ssa;
 
 class SsaFromIrBuilderTask extends CompilerTask {
   final JavaScriptBackend backend;
 
   SsaFromIrBuilderTask(JavaScriptBackend backend)
@@ skipping 42 matching lines @@
     implements IrNodesVisitor, SsaBuilderMixin<IrNode> {
   /**
    * Maps IR expressions to the generated [HInstruction]. Because the IR is
    * in an SSA form, the arguments of an [IrNode] have already been visited
    * prior to the node. This map is used to obtain the corresponding generated
    * SSA node.
    */
   final Map<IrExpression, HInstruction> emitted =
       new Map<IrExpression, HInstruction>();
 
-  void emitReturn(HInstruction value, IrReturn node);
-
   /**
    * This method sets up the state of the IR visitor for inlining an invocation
    * of [function].
    */
   void setupStateForInlining(FunctionElement function,
                              List<HInstruction> compiledArguments) {
     // TODO(lry): once the IR supports functions with parameters or dynamic
     // invocations, map the parameters (and [:this:]) to the argument
     // instructions by extending the [emitted] mapping.
     assert(function.computeSignature(compiler).parameterCount == 0);
@@ skipping 174 matching lines @@
 
   void doInline(FunctionElement function) {
     if (compiler.irBuilder.hasIr(function)) {
       visitInlinedFunction(function);
     } else {
       IrInliningState state = inliningStack.last;
       state.astInliner.visitInlinedFunction(function);
     }
   }
 }