[gn build] Port cada5b8

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/unittests/DebugInfo/DWARF/BUILD.gn

@@ -15,6 +15,7 @@ unittest("DebugInfoDWARFTests") {
     "DWARFAcceleratorTableTest.cpp",
     "DWARFDataExtractorTest.cpp",
     "DWARFDebugArangeSetTest.cpp",
+    "DWARFDebugFrameTest.cpp",
     "DWARFDebugInfoTest.cpp",
     "DWARFDebugLineTest.cpp",
     "DWARFDieTest.cpp",