message: [Target] Fix incorrectly merged experimental properties.
  In swift-lldb we have an additional experimental feature
  (swift-create-module-contexts-in-parallel). The table and property
  describing this feature got out of sync, causing the wrong feature to be
  enabled by default (use-modern-type-lookup).
diff: @@ -3933,16 +3933,20 @@ static constexpr PropertyDefinition g_experimental_properties[]{
  "This will fix symbol resolution when there are name collisions between "
  "ivars and local variables. "
  "But it can make expressions run much more slowly."},
  - {"swift-create-module-contexts-in-parallel", OptionValue::eTypeBoolean,
  - false, true, nullptr, {},
  - "Create the per-module Swift AST contexts in parallel."},
  {"use-modern-type-lookup",
  OptionValue::eTypeBoolean,
  true,
  false,
  nullptr,
  {},
  - "If true, use Clang's modern type lookup infrastructure."}};
  + "If true, use Clang's modern type lookup infrastructure."},
  + {"swift-create-module-contexts-in-parallel",
  + OptionValue::eTypeBoolean,
  + false,
  + true,
  + nullptr,
  + {},
  + "Create the per-module Swift AST contexts in parallel."}};
  enum {
  ePropertyInjectLocalVars = 0,
  