[debugger] omit exception events for rethrown exceptions in async.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index bdc5370f5a30ac5779f65f6999c3470256a712cf..6aa38880b433a020d93e94c9f5484d2c2f60d44f 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -2260,7 +2260,12 @@ void BytecodeGenerator::VisitYield(Yield* expr) {
 
     builder()->Bind(&resume_with_throw);
     builder()->SetExpressionPosition(expr);
-    builder()->LoadAccumulatorWithRegister(input).Throw();
+    builder()->LoadAccumulatorWithRegister(input);
+    if (expr->rethrow_on_exception()) {
+      builder()->ReThrow();
+    } else {
+      builder()->Throw();
+    }
 
     builder()->Bind(&resume_with_next);
     builder()->LoadAccumulatorWithRegister(input);