Move core:runtime to base:runtime; keep alias around

base/runtime/entry_windows.odin

@@ -0,0 +1,50 @@
+//+private
+//+build windows
+//+no-instrumentation
+package runtime
+
+import "core:intrinsics"
+
+when ODIN_BUILD_MODE == .Dynamic {
+	@(link_name="DllMain", linkage="strong", require)
+	DllMain :: proc "system" (hinstDLL: rawptr, fdwReason: u32, lpReserved: rawptr) -> b32 {
+		context = default_context()
+
+		// Populate Windows DLL-specific global
+		dll_forward_reason = DLL_Forward_Reason(fdwReason)
+
+		switch dll_forward_reason {
+		case .Process_Attach:
+			#force_no_inline _startup_runtime()
+			intrinsics.__entry_point()
+		case .Process_Detach:
+			#force_no_inline _cleanup_runtime()
+		case .Thread_Attach:
+			break
+		case .Thread_Detach:
+			break
+		}
+		return true
+	}
+} else when !ODIN_TEST && !ODIN_NO_ENTRY_POINT {
+	when ODIN_ARCH == .i386 || ODIN_NO_CRT {
+		@(link_name="mainCRTStartup", linkage="strong", require)
+		mainCRTStartup :: proc "system" () -> i32 {
+			context = default_context()
+			#force_no_inline _startup_runtime()
+			intrinsics.__entry_point()
+			#force_no_inline _cleanup_runtime()
+			return 0
+		}
+	} else {
+		@(link_name="main", linkage="strong", require)
+		main :: proc "c" (argc: i32, argv: [^]cstring) -> i32 {
+			args__ = argv[:argc]
+			context = default_context()
+			#force_no_inline _startup_runtime()
+			intrinsics.__entry_point()
+			#force_no_inline _cleanup_runtime()
+			return 0
+		}
+	}
+}