Use old assertion text script in precompiled mode

runtime/lib/errors.cc

Index: runtime/lib/errors.cc
diff --git a/runtime/lib/errors.cc b/runtime/lib/errors.cc
index b039efa97257f8575b727c52ababeb0fc6c4af13..f13ab27257f855a4c952c38915c4c4d2111b10c4 100644
--- a/runtime/lib/errors.cc
+++ b/runtime/lib/errors.cc
@@ -14,6 +14,10 @@ namespace dart {
 // Scan the stack until we hit the first function in the _AssertionError
 // class. We then return the next frame's script taking inlining into account.
 static RawScript* FindScript(DartFrameIterator* iterator) {
+  if (FLAG_precompiled_runtime) {

[Florian Schneider, 2016/10/31 16:07:05]

Add a comment about what the difference with stack traces in precompiled mode.

[Cutch, 2016/10/31 16:13:11]

Done.

+    iterator->NextFrame();  // Skip _AssertionError._checkAssertion frame
+    return Exceptions::GetCallerScript(iterator);
+  }
   StackFrame* stack_frame = iterator->NextFrame();
   Code& code = Code::Handle();
   Function& func = Function::Handle();