Merge pull request #8633 from apple/disable_lldb_tests

Author: swift-ci

utils/build-presets.ini

@@ -737,6 +737,9 @@ lit-args=-v
 
 dash-dash
 
+# rdar://problem/31454823
+skip-test-lldb
+
 install-foundation
 install-libdispatch
 reconfigure
@@ -957,6 +960,9 @@ mixin-preset=
 
 dash-dash
 
+# rdar://problem/31480188
+skip-test-lldb
+
 swift-install-components=compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-xpc-service;swift-remote-mirror;swift-remote-mirror-headers
 llvm-install-components=libclang;libclang-headers