ICData::NumberOfChecks is O(n) so don't call it in loops

runtime/vm/flow_graph_inliner.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.
 #if !defined(DART_PRECOMPILED_RUNTIME)
 #include "vm/flow_graph_inliner.h"
 
 #include "vm/aot_optimizer.h"
 #include "vm/precompiler.h"
 #include "vm/block_scheduler.h"
 #include "vm/branch_optimizer.h"
@@ skipping 3455 matching lines @@
       return InlineDoubleOp(flow_graph, Token::kMUL, call, receiver, entry,
                             last);
     case MethodRecognizer::kDoubleDiv:
       return InlineDoubleOp(flow_graph, Token::kDIV, call, receiver, entry,
                             last);
     case MethodRecognizer::kDouble_getIsNaN:
     case MethodRecognizer::kDouble_getIsInfinite:
       return InlineDoubleTestOp(flow_graph, call, receiver, kind, entry, last);
     case MethodRecognizer::kGrowableArraySetData:
       ASSERT(receiver_cid == kGrowableObjectArrayCid);
-      ASSERT(ic_data.NumberOfChecks() == 1);
+      ASSERT(ic_data.NumberOfChecksIs(1));
       return InlineGrowableArraySetter(
           flow_graph, GrowableObjectArray::data_offset(), kEmitStoreBarrier,
           call, receiver, entry, last);
     case MethodRecognizer::kGrowableArraySetLength:
       ASSERT(receiver_cid == kGrowableObjectArrayCid);
-      ASSERT(ic_data.NumberOfChecks() == 1);
+      ASSERT(ic_data.NumberOfChecksIs(1));
       return InlineGrowableArraySetter(
           flow_graph, GrowableObjectArray::length_offset(), kNoStoreBarrier,
           call, receiver, entry, last);
     case MethodRecognizer::kSmi_bitAndFromSmi:
       return InlineSmiBitAndFromSmi(flow_graph, call, receiver, entry, last);
 
     case MethodRecognizer::kFloat32x4ShuffleX:
     case MethodRecognizer::kFloat32x4ShuffleY:
     case MethodRecognizer::kFloat32x4ShuffleZ:
     case MethodRecognizer::kFloat32x4ShuffleW:
@@ skipping 164 matching lines @@
     }
 
     default:
       return false;
   }
 }
 
 
 }  // namespace dart
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)