Fix detection if a function was compiled,

runtime/vm/compiler.cc

Index: runtime/vm/compiler.cc
diff --git a/runtime/vm/compiler.cc b/runtime/vm/compiler.cc
index cad89e5569697eeabd475731d0f0e6f0a445b1ec..2db82a091a5b894015cb190e5c3ea98353dcad84 100644
--- a/runtime/vm/compiler.cc
+++ b/runtime/vm/compiler.cc
@@ -1109,6 +1109,7 @@ static RawError* CompileFunctionHelper(CompilationPipeline* pipeline,
                                        bool optimized,
                                        intptr_t osr_id) {
   ASSERT(!FLAG_precompiled_mode);
+  ASSERT(!optimized || function.was_compiled());
   LongJumpScope jump;
   if (setjmp(*jump.Set()) == 0) {
     Thread* const thread = Thread::Current();
@@ -1165,7 +1166,9 @@ static RawError* CompileFunctionHelper(CompilationPipeline* pipeline,
     }
 
     const bool success = helper.Compile(pipeline);
-    if (!success) {
+    if (success) {
+      function.set_was_compiled(true);

[siva, 2016/04/05 20:20:42]

Maybe clearly if you did
if (!optimized) {
  function.set_was_compiled(true);
}

[srdjan, 2016/04/05 20:31:19]

Done.

+    } else {
       if (optimized) {
         if (Compiler::IsBackgroundCompilation()) {
           // Try again later, background compilation may abort because of