A64: Synchronize with r15922.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 4b2d1d204a2548a49b30ad3e28cc91dd475fd084..7b61c777990fae04caeae976e250a20d57df9412 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -978,7 +978,9 @@ void Compiler::RecompileParallel(Handle<JSFunction> closure) {
 
   if (!isolate->optimizing_compiler_thread()->IsQueueAvailable()) {
     if (FLAG_trace_parallel_recompilation) {
-      PrintF("  ** Compilation queue, will retry opting on next run.\n");
+      PrintF("  ** Compilation queue full, will retry optimizing ");
+      closure->PrintName();
+      PrintF(" on next run.\n");
     }
     return;
   }
@@ -1256,10 +1258,13 @@ CompilationPhase::~CompilationPhase() {
 
 
 bool CompilationPhase::ShouldProduceTraceOutput() const {
-  // Produce trace output if flag is set so that the first letter of the
-  // phase name matches the command line parameter FLAG_trace_phase.
-  return (FLAG_trace_hydrogen &&
-          OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
+  // Trace if the appropriate trace flag is set and the phase name's first
+  // character is in the FLAG_trace_phase command line parameter.
+  bool tracing_on = info()->IsStub() ?
+      FLAG_trace_hydrogen_stubs :
+      FLAG_trace_hydrogen;
+  return (tracing_on &&
+      OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal