Update typescript-core reference to the latest version

styczynski · styczynski · commit e4cf857a9e30 · 2019-06-25T18:54:25.000+02:00
diff --git a/typescript-core b/typescript-core
@@ -1 +1 @@
-Subproject commit 8cfcd4483ebcb68a071bc12b9801d506dde6dd3d
+Subproject commit 5ceb5ca18af795382803fec4a1b270b914540637
