[gn] port dda996b (CAS)

Author: nico

llvm/utils/gn/secondary/llvm/lib/CAS/BUILD.gn

@@ -0,0 +1,8 @@
+static_library("CAS") {
+  output_name = "LLVMCAS"
+  sources = [
+    "BuiltinCAS.cpp",
+    "InMemoryCAS.cpp",
+    "ObjectStore.cpp",
+  ]
+}

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

@@ -8,6 +8,7 @@ group("unittests") {
     "BinaryFormat:BinaryFormatTests",
     "Bitcode:BitcodeTests",
     "Bitstream:BitstreamTests",
+    "CAS:CASTests",
     "CGData:CodeGenDataTests",
     "CodeGen:CodeGenTests",
 

llvm/utils/gn/secondary/llvm/unittests/CAS/BUILD.gn

@@ -0,0 +1,13 @@
+import("//third-party/unittest/unittest.gni")
+
+unittest("CASTests") {
+  deps = [
+    "//llvm/lib/CAS",
+    "//llvm/lib/Support",
+    "//llvm/lib/Testing/Support",
+  ]
+  sources = [
+    "CASTestConfig.cpp",
+    "ObjectStoreTest.cpp",
+  ]
+}