Replace llvm::Optional with std::optional

[ahueck]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 12904858633

Details

• 88 of 102 (86.27%) changed or added relevant lines in 23 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.005%) to 90.735%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/passes/Commandline.cpp	1	2	50.0%
lib/passes/TypeARTConfiguration.cpp	0	1	0.0%
lib/passes/filter/OmpUtil.h	3	4	75.0%
lib/passes/instrumentation/InstrumentationHelper.cpp	2	3	66.67%
lib/support/FileConfiguration.cpp	1	2	50.0%
lib/passes/filter/IRPath.h	10	12	83.33%
lib/passes/typegen/ir/TypeManager.cpp	8	10	80.0%
lib/passes/typegen/ir/VectorTypeHandler.cpp	10	12	83.33%
lib/passes/filter/CGInterface.cpp	4	7	57.14%

Files with Coverage Reduction	New Missed Lines	%
lib/passes/filter/CGInterface.cpp	1	73.95%

Totals
Change from base Build 12894186508:	0.005%
Covered Lines:	3829
Relevant Lines:	4220

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💛 - Coveralls