[gn] port a207e63 (LLVMFrontendDriver)

Author: nico

llvm/utils/gn/secondary/clang/lib/CodeGen/BUILD.gn

@@ -17,6 +17,7 @@ static_library("CodeGen") {
     "//llvm/lib/Bitcode/Reader",
     "//llvm/lib/CodeGen",
     "//llvm/lib/Demangle",
+    "//llvm/lib/Frontend/Driver",
     "//llvm/lib/Frontend/HLSL",
     "//llvm/lib/Frontend/Offloading",
     "//llvm/lib/IR",

llvm/utils/gn/secondary/llvm/lib/Frontend/Driver/BUILD.gn

@@ -0,0 +1,10 @@
+static_library("Driver") {
+  output_name = "LLVMFrontendDriver"
+  deps = [
+    "//llvm/lib/Analysis",
+    "//llvm/lib/IR",
+    "//llvm/lib/Support",
+    "//llvm/lib/TargetParser",
+  ]
+  sources = [ "CodeGenOptions.cpp" ]
+}