Renaming; module identifiers can't contain numbers

Author: paulyoung

Package.swift

@@ -9,7 +9,7 @@ let package = Package(
         .library(name: "CDK", targets: ["CDK"]),
     ],
     targets: [
-        .target(name: "ic0", dependencies: []),
-        .target(name: "CDK", dependencies: ["ic0"]),
+        .target(name: "IC", dependencies: []),
+        .target(name: "CDK", dependencies: ["IC"]),
     ]
 )

Sources/CDK/CDK.swift

@@ -1,5 +1,6 @@
-import ic0
+import IC
 
+@_cdecl("time")
 public func time() -> Int64 {
-    ic0.time()
+    IC.time()
 }

Sources/IC/IC.c

@@ -0,0 +1,15 @@
+#ifndef ic_h
+#define ic_h
+
+#include <stdint.h>
+
+#if __wasm32__
+
+__attribute__((__import_module__("ic0"),__import_name__("time")))
+extern int64_t time(void);
+
+__attribute__((__import_module__("ic0"),__import_name__("debug_print")))
+extern void debug_print(int32_t src, int32_t size);
+
+#endif
+#endif /* ic_h */