Changes

Summary

1. fix doc typos to cycle bots (details)
2. [gn build] Port a0f50d73163 (details)

Commit 46be16897706fa21ac0868746291444ca2461ce7 by thakis fix doc typos to cycle bots
	clang/docs/SanitizerCoverage.rst
Commit 4612e48d2fd91d99b4ea7136017bd72ab2946430 by llvmgnsyncbot [gn build] Port a0f50d73163
	llvm/utils/gn/secondary/clang/lib/AST/BUILD.gn