Experimentally add `ffi_const` and `ffi_pure` extern fn attributes - #58327

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gnzlbg wants to merge 11 commits into

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gnzlbg:ffi_const_pure

Commits on Feb 9, 2019

Add ffi_const and ffi_pure extern fn attributes
gnzlbg
committed
d8344ff
Use the term foreign function in errors
gnzlbg
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bf149c0

Commits on Feb 10, 2019

Use pattern to match attributes
gnzlbg
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945cbe4
Fix attribute check
gnzlbg
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736c437
Fix tidy
gnzlbg
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3adeddd

Commits on Feb 11, 2019

Update doc of `ffi_const`

Centril
and
gnzlbg
authored
effaf14

Commits on Feb 12, 2019

Document in unstable book; check that const functions are not pure, rename to c_ffi_...
gnzlbg
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26eb8b0
Fix tests
gnzlbg
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c11a27f
Tidy book
gnzlbg
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d663711
Fix typos
gnzlbg
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a3d0f3c

Commits on Feb 13, 2019

Do not emit incorrect IR on error
gnzlbg
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3770725