[inspector] use creation stack trace as parent for async call chains

test/inspector/debugger/async-stack-await-expected.txt

 Checks that async stacks works for async/await
 foo2 (test.js:15:2)
--- async function (test.js:13:19)--
+-- async function --
 foo2 (test.js:13:19)
 test (test.js:24:8)
 (anonymous) (expr.js:0:0)
 
 foo2 (test.js:17:2)
--- async function (test.js:13:19)--
+-- async function --
 foo2 (test.js:13:19)
 test (test.js:24:8)
 (anonymous) (expr.js:0:0)
 
 foo1 (test.js:9:2)
 foo2 (test.js:18:8)
--- async function (test.js:13:19)--
+-- async function --
 foo2 (test.js:13:19)
 test (test.js:24:8)
 (anonymous) (expr.js:0:0)
 
 foo1 (test.js:9:2)
--- Promise.resolve (test.js:19:43)--
--- Promise.resolve (test.js:19:16)--
-foo2 (test.js:19:30)
--- async function (test.js:13:19)--
+-- Promise.resolve --
+foo2 (test.js:19:43)
+-- async function --
 foo2 (test.js:13:19)
 test (test.js:24:8)
 (anonymous) (expr.js:0:0)
 
 foo2 (test.js:20:2)
--- async function (test.js:13:19)--
+-- async function --
 foo2 (test.js:13:19)
 test (test.js:24:8)
 (anonymous) (expr.js:0:0)
 
 {
     id : <messageId>
     result : {
         result : {
             type : undefined
         }
     }
 }