Don't include usage counters, etc in snapshots with code. If we already have code, eagerly recompil…

runtime/bin/log_android.cc

Index: runtime/bin/log_android.cc
diff --git a/runtime/bin/log_android.cc b/runtime/bin/log_android.cc
index 7f68d686097ac21e985e8cb12575ddf33b53519f..42a67556638d4613867711e3d2c505ddbc302c68 100644
--- a/runtime/bin/log_android.cc
+++ b/runtime/bin/log_android.cc
@@ -21,6 +21,7 @@ void Log::VPrint(const char* format, va_list args) {
   // (critical ones or not) if we print them to stdout/stderr.
   // We also log using android's logging system.
   vprintf(format, args);
+  fflush(stdout);
   __android_log_vprint(ANDROID_LOG_INFO, "Dart", format, args);
 }
 
@@ -29,6 +30,7 @@ void Log::VPrintErr(const char* format, va_list args) {
   // (critical ones or not) if we print them to stdout/stderr.
   // We also log using android's logging system.
   vfprintf(stderr, format, args);
+  fflush(stderr);
   __android_log_vprint(ANDROID_LOG_ERROR, "Dart", format, args);
 }