Distinguish statement and expression foreign code.

lib/compiler/implementation/ssa/codegen.dart

 // Copyright (c) 2012, 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.
 
 class SsaCodeGeneratorTask extends CompilerTask {
   final JavaScriptBackend backend;
   SsaCodeGeneratorTask(JavaScriptBackend backend)
       : this.backend = backend,
         super(backend.compiler);
   String get name() => 'SSA code generator';
@@ skipping 1383 matching lines @@
     int kind = EMPTY;
     bool updateKind(int newKind) {
       if (kind != EMPTY) return false;
       kind = newKind;
       return true;
     }
 
     for (HInstruction instruction = start.first;
          instruction != start.last;
          instruction = instruction.next) {
-      if (instruction.isStatement()) {
+      if (instruction.isStatement) {
         if (!updateKind(ONE_STATEMENT)) return MULTIPLE_STATEMENTS;
       } else if (!isGenerateAtUseSite(instruction)) {
         if (!updateKind(ONE_EXPRESSION)) return MULTIPLE_STATEMENTS;
       }
     }
 
     HInstruction last = start.last;
     if (last is !HGoto) {
-      if (!updateKind(last.isStatement() ? ONE_STATEMENT : ONE_EXPRESSION)) {
+      if (!updateKind(last.isStatement ? ONE_STATEMENT : ONE_EXPRESSION)) {
         return MULTIPLE_STATEMENTS;
       }
     }
 
     CopyHandler handler = variableNames.getCopyHandler(start);
     if (handler !== null && !handler.isEmpty()) {
       if (handler.assignments.length > 1) return MULTIPLE_STATEMENTS;
       if (handler.assignments.length == 1) {
         if (!updateKind(ONE_STATEMENT)) return MULTIPLE_STATEMENTS;
       }
@@ skipping 1648 matching lines @@
       startBailoutSwitch();
     }
   }
 
   void endLabeledBlock(HLabeledBlockInformation labeledBlockInfo) {
     if (labeledBlockInfo.body.start.hasGuards()) {
       endBailoutSwitch();
     }
   }
 }