Revert a mistake in Node::CollectProjections.

src/compiler/node.cc

Index: src/compiler/node.cc
diff --git a/src/compiler/node.cc b/src/compiler/node.cc
index c60822e3d48f1894061d7aaf3ece14bbb80b5923..d12aeb82b3572c1d44b966c95335147e84ea3337 100644
--- a/src/compiler/node.cc
+++ b/src/compiler/node.cc
@@ -11,10 +11,16 @@ namespace internal {
 namespace compiler {
 
 void Node::CollectProjections(NodeVector* projections) {
+  for (size_t i = 0; i < projections->size(); i++) {
+    (*projections)[i] = NULL;

[titzer, 2014/08/25 13:17:13]

I think you can use projections->at(i) here.

+  }
   for (UseIter i = uses().begin(); i != uses().end(); ++i) {
     if ((*i)->opcode() != IrOpcode::kProjection) continue;
-    DCHECK_GE(OpParameter<int32_t>(*i), 0);
-    projections->push_back(*i);
+    int32_t index = OpParameter<int32_t>(*i);
+    DCHECK_GE(index, 0);
+    DCHECK_LT(index, projections->size());
+    DCHECK_EQ(NULL, (*projections)[index]);
+    (*projections)[index] = *i;
   }
 }