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

src/full-codegen/mips/full-codegen-mips.cc

Index: src/full-codegen/mips/full-codegen-mips.cc
diff --git a/src/full-codegen/mips/full-codegen-mips.cc b/src/full-codegen/mips/full-codegen-mips.cc
index 4d041eb06d0c481ed9a833ec2807005ae194dc1a..0b0fe688d45199adb3741c52ffdaf3a4db1e2416 100644
--- a/src/full-codegen/mips/full-codegen-mips.cc
+++ b/src/full-codegen/mips/full-codegen-mips.cc
@@ -1826,7 +1826,8 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
   EmitUnwindAndReturn();
 
   __ bind(&exception);
-  __ CallRuntime(Runtime::kThrow);
+  __ CallRuntime(IsAsyncFunction(literal()->kind()) ? Runtime::kReThrow
+                                                    : Runtime::kThrow);
 
   __ bind(&suspend);
   OperandStackDepthIncrement(1);  // Not popped on this path.