Add Internal version of InlineArray with no availability limitations

Author: tbkka

Runtimes/Core/core/CMakeLists.txt

@@ -89,6 +89,7 @@ add_library(swiftCore
   Identifiable.swift
   Indices.swift
   InlineArray.swift
+  _InlineArray.swift
   InputStream.swift
   IntegerParsing.swift
   Integers.swift

stdlib/public/core/CMakeLists.txt

@@ -94,6 +94,7 @@ split_embedded_sources(
   EMBEDDED Identifiable.swift
   EMBEDDED Indices.swift
   EMBEDDED InlineArray.swift
+  EMBEDDED _InlineArray.swift
   EMBEDDED InputStream.swift
   EMBEDDED IntegerParsing.swift
   EMBEDDED Integers.swift

stdlib/public/core/GroupInfo.json

@@ -275,7 +275,8 @@
     "EmbeddedRuntime.swift",
     "EmbeddedStubs.swift",
     "EmbeddedPrint.swift",
-    "InlineArray.swift"
+    "InlineArray.swift",
+    "_InlineArray.swift"
   ],
   "Result": [
     "Result.swift"