8281459: WebKit 613.1 build broken on M1

[arapte]

This seems like a bad merge issue.
There were duplicate copies of four methods in MacroAssemblerARM64.h which caused WebKit build failure on Mac M1 machines.
Just removing the methods removes the error.
With the changes in this PR, now the file MacroAssemblerARM64.h matches with the WebKit mainline.

---

Progress

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Issue

• JDK-8281459: WebKit 613.1 build broken on M1

Reviewers

• Kevin Rushforth (@kevinrushforth - Reviewer)
• Johan Vos (@johanvos - Reviewer)

Reviewing

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[kevinrushforth]

/reviewers 2

[openjdk]

@kevinrushforth
The number of required reviews for this PR is now set to 2 (with at least 1 of role reviewers).

[mlbridge]

Webrevs

• 00: Full (d2138b0d)

[johanvos]

Thanks for the quick patch.
This looks good om Linux-aarch64 (which suffered from the same issue). I'll do a test on M1 tomorrow.

[kevinrushforth]

Looks good. Tested on macOS aarch64.

[johanvos]

Confirmed that this now builds fine on M1

[openjdk]

@arapte This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8281459: WebKit 613.1 build broken on M1

Reviewed-by: kcr, jvos

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 590033f: 8273336: Clicking a selected cell from a group of selected cells in a TableView clears the selected items list but remains selected

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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[arapte]

/integrate

[openjdk]

Going to push as commit cdebc6c.
Since your change was applied there have been 2 commits pushed to the master branch:

• 4cf66d9: 8187309: TreeCell must not change tree's data
• 590033f: 8273336: Clicking a selected cell from a group of selected cells in a TableView clears the selected items list but remains selected

Your commit was automatically rebased without conflicts.

[openjdk]

@arapte Pushed as commit cdebc6c.

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