XFAIL two tests failing on master-next

https://bugs.swift.org/browse/SR-12362
https://bugs.swift.org/browse/SR-12363

Author: benlangmuir

test/Driver/bad_tmpdir.swift

@@ -6,6 +6,9 @@
 //
 // REQUIRES: OS=macosx
 
+// SR-12362: This test is failing on master-next.
+// XFAIL: *
+
 // RUN: env TMP="%t/fake/" TMPDIR="%t/fake/" not %target-build-swift -c -driver-filelist-threshold=0 %s 2>&1 | %FileCheck -check-prefix=CHECK-SOURCES %s
 
 // CHECK-SOURCES: - unable to create list of input sources

test/Serialization/load-target-normalization.swift

@@ -1,6 +1,9 @@
 // RUN: %empty-directory(%t/ForeignModule.swiftmodule)
 // RUN: touch %t/ForeignModule.swiftmodule/garbage-garbage-garbage.swiftmodule
 
+// SR-12363: This test crashes on master-next.
+// XFAIL: *
+
 // Test format: We try to import ForeignModule with architectures besides
 // garbage-garbage-garbage and check the target triple listed in the error
 // message to make sure it was normalized correctly. This works in lieu of a