Swift: fix static library handling

Handle static libraries similar to shared libraries.  Do not pass along
the shared library flags raw as that will pass flags for the linker to
the driver which is incorrect.

Source/cmLocalGenerator.cxx

@@ -1134,11 +1134,13 @@ void cmLocalGenerator::GetStaticLibraryFlags(std::string& flags,
                                              std::string const& linkLanguage,
                                              cmGeneratorTarget* target)
 {
-  this->AppendFlags(
-    flags, this->Makefile->GetSafeDefinition("CMAKE_STATIC_LINKER_FLAGS"));
-  if (!config.empty()) {
-    std::string name = "CMAKE_STATIC_LINKER_FLAGS_" + config;
-    this->AppendFlags(flags, this->Makefile->GetSafeDefinition(name));
+  if (linkLanguage != "Swift") {
+    this->AppendFlags(
+      flags, this->Makefile->GetSafeDefinition("CMAKE_STATIC_LINKER_FLAGS"));
+    if (!config.empty()) {
+      std::string name = "CMAKE_STATIC_LINKER_FLAGS_" + config;
+      this->AppendFlags(flags, this->Makefile->GetSafeDefinition(name));
+    }
   }
   this->AppendFlags(flags, target->GetProperty("STATIC_LIBRARY_FLAGS"));
   if (!config.empty()) {