[gn build] Port ebb9a79cd370 (#196622)

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

diff --git a/llvm/utils/gn/secondary/clang/unittests/DependencyScanning/BUILD.gn b/llvm/utils/gn/secondary/clang/unittests/DependencyScanning/BUILD.gn
index 95c748a..4a40696 100644
--- a/llvm/utils/gn/secondary/clang/unittests/DependencyScanning/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/unittests/DependencyScanning/BUILD.gn
@@ -8,5 +8,8 @@
     "//llvm/lib/Option",
     "//llvm/lib/Support",
   ]
-  sources = [ "DependencyScanningFilesystemTest.cpp" ]
+  sources = [
+    "DependencyScanningFilesystemTest.cpp",
+    "InProcessModuleCacheTest.cpp",
+  ]
 }