[gn] port c51095f (InstallAPI diag tablegen)

Author: nico

llvm/utils/gn/secondary/clang/include/clang/Basic/BUILD.gn

@@ -25,6 +25,7 @@ diag_groups = [
   "CrossTU",
   "Driver",
   "Frontend",
+  "InstallAPI",
   "Lex",
   "Parse",
   "Refactoring",

llvm/utils/gn/secondary/clang/tools/clang-installapi/BUILD.gn

@@ -1,15 +1,23 @@
+import("//llvm/utils/TableGen/tablegen.gni")
 import("//llvm/utils/gn/build/driver_executable.gni")
 
+tablegen("InstallAPIOpts") {
+  visibility = [ ":clang-installapi" ]
+  args = [ "-gen-opt-parser-defs" ]
+}
+
 driver_executable("clang-installapi") {
   configs += [ "//llvm/utils/gn/build:clang_code" ]
   deps = [
+    ":InstallAPIOpts",
     "//clang/lib/Driver",
     "//clang/lib/Frontend",
     "//clang/lib/InstallAPI",
     "//clang/lib/Tooling",
     "//llvm/lib/Support",
     "//llvm/lib/TargetParser",
     "//llvm/lib/TextAPI",
+    "//llvm/lib/TextAPI/BinaryReader",
   ]
   sources = [
     "ClangInstallAPI.cpp",