Slight cleanup of TryCatch parsing/variable declaration

test/mjsunit/harmony/async-function-stacktrace.js

Index: test/mjsunit/harmony/async-function-stacktrace.js
diff --git a/test/mjsunit/harmony/async-function-stacktrace.js b/test/mjsunit/harmony/async-function-stacktrace.js
index 50df44d033fda61e01c003a27c15aeb62cf27b90..921f06350056fd95be13874fff642176d17c0171 100644
--- a/test/mjsunit/harmony/async-function-stacktrace.js
+++ b/test/mjsunit/harmony/async-function-stacktrace.js
@@ -97,7 +97,7 @@ async function runTests() {
     } catch (e) {
       throw new Error("FAIL");
     }
-  }, ["e"]); // TODO(caitp): FuncNameInferer is doing some weird stuff...
+  }, ["async"]);
 
   await test(async() => {
     await 1;
@@ -106,7 +106,7 @@ async function runTests() {
     } catch (e) {
       throw new Error("FAIL");
     }
-  }, ["e"]);
+  }, ["async"]);
 }
 
 runTests().catch(e => {