[build] Enable noncopyable generics; disable anything that prevents toolchain builds from succeeding

Author: lorentey

utils/build-presets.ini

@@ -1293,6 +1293,10 @@ build-swift-stdlib-unittest-extra
 # Don't build the benchmarks
 skip-build-benchmarks
 
+# FIXME(NCG): Temporary additions for dev toolchain generation
+enable-experimental-noncopyable-generics=1
+bootstrapping=hosttools
+
 # When building for an Xcode toolchain, don't copy the Swift Resource/ directory
 # into the LLDB.framework. LLDB.framework will be installed alongside a Swift
 # compiler, so LLDB should use its resource directory directly.