CoffeeScript 2 support for JSX (React only, it seems), with test

packages/non-core/coffeescript-compiler/coffeescript-compiler.js

@@ -22,7 +22,10 @@ export class CoffeeScriptCompiler {
       // prevents CoffeeScript projects from using the modules package and
       // putting require or import statements within backticks; it just
       // won't happen automatically because of Babel.
-      runtime: false
+      runtime: false,
+      // CoffeeScript 2 supports for JSX, which Meteor supports only for React,
+      // per packages/ecmascript/plugin.js.
+      react: true
     });
   }
 

packages/non-core/coffeescript/tests/coffeescript_tests.coffee

@@ -28,3 +28,12 @@ Tinytest.add "coffeescript - import local module via native import statement", (
 import { testingForNativeImportedModule123456789 } from "./coffeescript_module.coffee";
 Tinytest.add "coffeescript - import local module exported by a CoffeeScript native export statement, via native import statement", (test) ->
   test.isTrue testingForNativeImportedModule123456789?
+
+
+# JSX
+Tinytest.add "coffeescript - JSX", (test) ->
+	# Mock React
+	React =
+		createElement: (tag, attributes, body) ->
+			"<#{tag}>#{body}</#{tag}>"
+	test.isTrue <div>Hello from JSX!</div> is '<div>Hello from JSX!</div>'