Add timeline events for compiling static initializers and writing full snapshots. Remove timeline e…

runtime/vm/precompiler.cc

 // Copyright (c) 2015, 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/precompiler.h"
 
 #include "vm/aot_optimizer.h"
 #include "vm/assembler.h"
 #include "vm/ast_printer.h"
 #include "vm/branch_optimizer.h"
@@ skipping 852 matching lines @@
   parsed_function->AllocateVariables();
   DartPrecompilationPipeline pipeline;
   PrecompileParsedFunctionHelper helper(parsed_function,
                                         /* optimized = */ true);
   bool success = helper.Compile(&pipeline);
   ASSERT(success);
 
   if (compute_type && field.is_final()) {
     intptr_t result_cid = pipeline.result_type().ToCid();
     if (result_cid != kDynamicCid) {
-      if (FLAG_trace_precompiler) {
+      if (FLAG_trace_precompiler && FLAG_support_il_printer) {
         THR_Print("Setting guarded_cid of %s to %s\n", field.ToCString(),
                   pipeline.result_type().ToCString());
       }
       field.set_guarded_cid(result_cid);
     }
   }
 
   if ((FLAG_disassemble || FLAG_disassemble_optimized) &&
       FlowGraphPrinter::ShouldPrint(parsed_function->function())) {
     Disassembler::DisassembleCode(parsed_function->function(),
@@ skipping 1967 matching lines @@
       CompilationPipeline::New(thread->zone(), function);
 
   ASSERT(FLAG_precompiled_mode);
   const bool optimized = function.IsOptimizable();  // False for natives.
   return PrecompileFunctionHelper(pipeline, function, optimized);
 }
 
 #endif  // DART_PRECOMPILER
 
 }  // namespace dart