[gn build] Port 104f5d1

Author: llvmgnsyncbot

llvm/utils/gn/secondary/clang/unittests/StaticAnalyzer/BUILD.gn

@@ -14,6 +14,7 @@ unittest("StaticAnalysisTests") {
   sources = [
     "APSIntTypeTest.cpp",
     "AnalyzerOptionsTest.cpp",
+    "BlockEntranceCallbackTest.cpp",
     "BugReportInterestingnessTest.cpp",
     "CallDescriptionTest.cpp",
     "CallEventTest.cpp",