Convert src/core/document.js to ES6 syntax

[timvandermeij]

The individual commits can be reviewed with the ?w=1 flag.

[timvandermeij]

/botio-linux preview

[pdfjsbot]

From: Bot.io (Linux m4)

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Command cmd_preview from @timvandermeij received. Current queue size: 0

Live output at: http://54.67.70.0:8877/a8869f65140cca0/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.67.70.0:8877/a8869f65140cca0/output.txt

Total script time: 1.63 mins

Published

• Viewer: http://54.67.70.0:8877/a8869f65140cca0/web/viewer.html

[timvandermeij]

/botio test

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_test from @timvandermeij received. Current queue size: 0

Live output at: http://54.67.70.0:8877/1c540fb3b579a1b/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @timvandermeij received. Current queue size: 0

Live output at: http://54.215.176.217:8877/d8d1c74354d7d86/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.67.70.0:8877/1c540fb3b579a1b/output.txt

Total script time: 17.70 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[pdfjsbot]

From: Bot.io (Windows)

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Success

Full output at http://54.215.176.217:8877/d8d1c74354d7d86/output.txt

Total script time: 23.54 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[Snuffleupagus]

Looks good to me, thank you!

I've left a couple of minor comments, and would also like to suggest adding /* eslint no-var: error */ to the top of files that you convert to ES6 to prevent future usage of var.

[timvandermeij]

/botio test

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @timvandermeij received. Current queue size: 0

Live output at: http://54.215.176.217:8877/52b0e10b18bd64c/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

---

Received

Command cmd_test from @timvandermeij received. Current queue size: 0

Live output at: http://54.67.70.0:8877/ac9e4cb833079ca/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

---

Success

Full output at http://54.67.70.0:8877/ac9e4cb833079ca/output.txt

Total script time: 17.65 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[pdfjsbot]

From: Bot.io (Windows)

---

Success

Full output at http://54.215.176.217:8877/52b0e10b18bd64c/output.txt

Total script time: 23.25 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed