[IDE] Tests: That that nonisolated has nonsending completion

Author: xedin

test/IDE/complete_nonisolated.swift

@@ -0,0 +1,10 @@
+// RUN: %batch-code-completion
+
+// NONISOLATED-DAG: Keyword/None:                       unsafe; name=unsafe
+// NONISOLATED-DAG: Keyword/None:                       nonsending; name=nonsending
+
+nonisolated(#^NONISOLATED_UNSAFE_TOP_LEVEL?check=NONISOLATED^#) var count = 0
+
+struct MyStruct {
+  nonisolated(#^NONISOLATED_UNSAFE_IN_STRUCT?check=NONISOLATED^#) var prop = 0
+}