Add missing nullptr check

Author: adrian-prantl

lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserSwiftDescriptorFinder.cpp

@@ -219,6 +219,8 @@ class DWARFFieldDescriptorImpl : public swift::reflection::FieldDescriptorBase {
       const auto *member_field_name =
           child_die.GetAttributeValueAsString(llvm::dwarf::DW_AT_name, "");
       auto *member_type = dwarf_parser->GetTypeForDIE(child_die);
+      if (!member_type)
+        continue;
       auto member_mangled_typename =
           member_type->GetForwardCompilerType().GetMangledTypeName();
 

lldb/test/API/lang/swift/embedded/nested_frame_variable/TestSwiftEmbeddedNestedFrameVariable.py

@@ -31,4 +31,3 @@ def implementation(self):
         s4 = frame.FindVariable("s4")
         t = s4.GetChildMemberWithName("t")
         lldbutil.check_variable(self, t, False, value='839')
-