Fix inlining information:

runtime/vm/il_printer.cc

 // 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.
 
 #include "vm/il_printer.h"
 
 #include "vm/flow_graph_range_analysis.h"
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
 namespace dart {
 
 DEFINE_FLAG(bool, print_environments, false, "Print SSA environments.");
 DEFINE_FLAG(charp, print_flow_graph_filter, NULL,
     "Print only IR of functions with matching names");
 
+DECLARE_FLAG(bool, trace_inlining_intervals);
+
 void BufferFormatter::Print(const char* format, ...) {
   va_list args;
   va_start(args, format);
   VPrint(format, args);
   va_end(args);
 }
 
 
 void BufferFormatter::VPrint(const char* format, va_list args) {
   intptr_t available = size_ - position_;
@@ skipping 101 matching lines @@
     instr->env()->PrintTo(&f);
   }
   if (print_locations && (instr->HasLocs())) {
     instr->locs()->PrintTo(&f);
   }
   if (instr->lifetime_position() != -1) {
     ISL_Print("%3" Pd ": ", instr->lifetime_position());
   }
   if (!instr->IsBlockEntry()) ISL_Print("    ");
   ISL_Print("%s", str);
+  if (FLAG_trace_inlining_intervals) {
+    ISL_Print(" iid: %"Pd"", instr->inlining_id());
+  }
 }
 
 
 void FlowGraphPrinter::PrintTypeCheck(const ParsedFunction& parsed_function,
                                       intptr_t token_pos,
                                       Value* value,
                                       const AbstractType& dst_type,
                                       const String& dst_name,
                                       bool eliminated) {
     const char* compile_type_name = "unknown";
@@ skipping 1058 matching lines @@
 }
 
 const char* Environment::ToCString() const {
   char buffer[1024];
   BufferFormatter bf(buffer, 1024);
   PrintTo(&bf);
   return Thread::Current()->zone()->MakeCopyOfString(buffer);
 }
 
 }  // namespace dart