[gn build] Manually port a3a2599

Author: aeubanks

llvm/utils/gn/secondary/llvm/lib/Support/LSP/BUILD.gn

@@ -0,0 +1,9 @@
+static_library("LSP") {
+  output_name = "LLVMSupportLSP"
+  deps = [ "//llvm/lib/Support" ]
+  sources = [
+    "Logging.cpp",
+    "Protocol.cpp",
+    "Transport.cpp",
+  ]
+}

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

@@ -51,6 +51,7 @@ group("unittests") {
     "SandboxIR:SandboxIRTests",
     "Support:SupportTests",
     "Support/DynamicLibrary:DynamicLibraryTests",
+    "Support/LSP:LSPTests",
     "TableGen:TableGenTests",
     "Target:TargetMachineCTests",
     "TargetParser:TargetParserTests",

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

@@ -0,0 +1,9 @@
+import("//third-party/unittest/unittest.gni")
+
+unittest("LSPTests") {
+  deps = [ "//llvm/lib/Support/LSP" ]
+  sources = [
+    "Protocol.cpp",
+    "Transport.cpp",
+  ]
+}