Index: source/Symbol/ClangASTType.cpp
===================================================================
--- source/Symbol/ClangASTType.cpp
+++ source/Symbol/ClangASTType.cpp
@@ -52,6 +52,11 @@
 #include <iterator>
 #include <mutex>
 
+// We make this a hard error to detect cases when clang introduces new types, but we do not
+// handle them yet. If you get a compiler error about an enumeration value missing from a switch in
+// this file, then you need to add code to handle the new type.
+#pragma GCC diagnostic error "-Wswitch"
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -2212,7 +2217,6 @@
         case clang::Type::Builtin:
             switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind())
         {
-            default: assert(0 && "Unknown builtin type!");
             case clang::BuiltinType::Void:
                 break;