fffa05a2bc
LLVM_TOOL_LLD_BUILD is a relic of the pre-monorepo times. This causes us to never set COMPILER_RT_HAS_LLD. Instead, set it from the runtimes build if lld is being built and lld is used as the compiler-rt linker. Mark a test that requires libstdc++ as requiring Android, as other platforms may not have a libstdc++ lying around. Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D144660