remove HIf.hasElse.

lib/compiler/implementation/ssa/bailout.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 BailoutInfo {
   int instructionId;
   int bailoutId;
   BailoutInfo(this.instructionId, this.bailoutId);
 }
 
@@ skipping 436 matching lines @@
         visitBasicBlock(continuation);
       }
     }
   }
 
   void visitIf(HIf instruction) {
     int preVisitedBlocks = 0;
     HIfBlockInformation info = instruction.blockInformation.body;
     visitStatements(info.thenGraph);
     preVisitedBlocks++;
-    if (instruction.hasElse) {
-      visitStatements(info.elseGraph);
-      preVisitedBlocks++;
-    }
+    visitStatements(info.elseGraph);
+    preVisitedBlocks++;
 
     HBasicBlock joinBlock = instruction.joinBlock;
     if (joinBlock !== null
         && joinBlock.dominator !== instruction.block) {
       // The join block is dominated by a block in one of the branches.
       // The subgraph traversal never reached it, so we visit it here
       // instead.
       visitBasicBlock(joinBlock);
     }
 
@@ skipping 51 matching lines @@
         hasComplexTypeGuards = true;
       }
     } else {
       hasComplexTypeGuards = true;
       blocks.forEach((HBasicBlock block) {
         block.guards.add(guard);
       });
     }
   }
 }