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Add implementation-contributed/curation_logs/v8.json

[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: ab06e520db targetRevisionAtLastExport: b9f58f3a

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha ab06e520db on Wed Sep 12 2018 16:11:56 GMT+0000 (Coordinated Universal Time)

JSC Tests Curation, the stress folder

out of scope for Test262

Remove more stress tests with existing coverage or out of context for test262

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[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: a7577363f7 targetRevisionAtLastExport: 1f7948aa

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha a7577363f7 on Tue Sep 11 2018 18:22:14 GMT+0000 (Coordinated Universal Time)

Apply fixes on recent class element tests

Private fields and methods whitespace syntax error

Add private methods templates for dstr-binding

No whitespace allowed between the sigil and the identifier name

Import test changes from JavaScriptCore

[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 8a73712b6a targetRevisionAtLastExport: 8e73aadc

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha 8a73712b6a on Mon Sep 10 2018 18:21:05 GMT+0000 (Coordinated Universal Time)

Ref https://github.com/tc39/test262/pull/1711#issuecomment-419973158

Add class private methods (include static) to arguments templates

Import test changes from JavaScriptCore