Xcode compatibility (#297)

* Ignore xcodeproj generated by SwiftPM

* Update to use official OpenCombine to avoid Xcode build error

* Use forked version with ObservableObject implementation

* Fix ambigious error

* Ignore SwiftPM edit mode package

* Update toolchain version

.gitignore

@@ -19,6 +19,7 @@ DerivedData
 *.hmap
 *.ipa
 .swiftpm/xcode
+*.xcodeproj
 
 # Bundler
 .bundle
@@ -39,3 +40,4 @@ Pods/
 
 # SwiftPM
 .build
+/Packages

.swift-version

@@ -1 +1 @@
-wasm-5.3-SNAPSHOT-2020-10-29-c
+wasm-5.3.0-RELEASE

Package.resolved

@@ -12,11 +12,11 @@
       },
       {
         "package": "OpenCombine",
-        "repositoryURL": "https://github.com/MaxDesiatov/OpenCombine.git",
+        "repositoryURL": "https://github.com/TokamakUI/OpenCombine.git",
         "state": {
           "branch": null,
-          "revision": "29ab27e488a1c9afef217b1435b3293d4a77b1ae",
-          "version": "0.0.1"
+          "revision": "4977ca158f19738f0cd420a1e5668712f4e28709",
+          "version": "0.12.0-alpha1"
         }
       },
       {

Package.swift

@@ -42,7 +42,7 @@ let package = Package(
       .upToNextMinor(from: "0.8.0")
     ),
     .package(url: "https://github.com/MaxDesiatov/Runtime.git", from: "2.1.2"),
-    .package(url: "https://github.com/MaxDesiatov/OpenCombine.git", from: "0.0.1"),
+    .package(url: "https://github.com/TokamakUI/OpenCombine.git", from: "0.12.0-alpha2"),
   ],
   targets: [
     // Targets are the basic building blocks of a package. A target can define

Sources/TokamakTestRenderer/TestRenderer.swift

@@ -24,7 +24,7 @@ import TokamakCore
 
 public func testScheduler(closure: @escaping () -> ()) {
   #if os(WASI)
-  let fn = JSClosure { _ in
+  let fn = JSClosure { _ -> JSValue in
     closure()
     return .undefined
   }