[update-checkout] Update master-20190619

Author: JDevlieghere

utils/update_checkout/update-checkout-config.json

@@ -405,14 +405,15 @@
         },
         "master-20190619" : {
             "aliases": ["apple/stable/20190619",
-                        "master-apple-stable-20190619"
+                        "master-apple-stable-20190619",
+                        "master-20190619"
                        ],
             "repos": {
                 "llvm": "apple/stable/20190619",
                 "clang": "apple/stable/20190619",
                 "compiler-rt": "apple/stable/20190619",
                 "swift": "master",
-                "lldb": "master",
+                "lldb": "stable",
                 "cmark": "master",
                 "llbuild": "master",
                 "swiftpm": "master",
@@ -421,15 +422,16 @@
                 "swift-corelibs-xctest": "master",
                 "swift-corelibs-foundation": "master",
                 "swift-corelibs-libdispatch": "master",
-                "swift-integration-tests": "master-rebranch",
+                "swift-integration-tests": "master",
                 "swift-xcode-playground-support": "master",
                 "ninja": "release",
                 "icu": "release-61-1",
                 "cmake": "v3.15.1",
                 "clang-tools-extra": "apple/stable/20190619",
                 "libcxx": "apple/stable/20190619",
                 "indexstore-db": "master",
-                "sourcekit-lsp": "master"
+                "sourcekit-lsp": "master",
+                "swift-format": "master"
             }
         },
         "stdlib_standalone" : {