Stoppp using trippple consonants

runtime/vm/flow_graph_allocator.cc

 // 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.
 
 #include "vm/flow_graph_allocator.h"
 
 #include "vm/bit_vector.h"
 #include "vm/intermediate_language.h"
 #include "vm/il_printer.h"
 #include "vm/flow_graph.h"
@@ skipping 1725 matching lines @@
       return use;
     }
   }
   return NULL;
 }
 
 
 UsePosition* AllocationFinger::FirstInterferingUse(intptr_t after) {
   if (IsInstructionEndPosition(after)) {
     // If after is a position at the end of the instruction disregard
-    // any use occuring at it.
+    // any use occurring at it.
     after += 1;
   }
   return FirstRegisterUse(after);
 }
 
 
 void AllocationFinger::UpdateAfterSplit(intptr_t first_use_after_split_pos) {
   if ((first_register_use_ != NULL) &&
       (first_register_use_->pos() >= first_use_after_split_pos)) {
     first_register_use_ = NULL;
@@ skipping 1332 matching lines @@
       FlowGraphPrinter printer(flow_graph_, true);
       printer.PrintBlocks();
 #endif
     }
     THR_Print("----------------------------------------------\n");
   }
 }
 
 
 }  // namespace dart