move all plugin tests out of babel-core and into their appropriate folders

packages/babel-plugin-transform-function-bind/test/fixtures/function-bind/complex-call/actual.js

@@ -0,0 +1,6 @@
+import { map, takeWhile, forEach } from "iterlib";
+
+getPlayers()
+::map(x => x.character())
+::takeWhile(x => x.strength > 100)
+::forEach(x => console.log(x));

packages/babel-plugin-transform-function-bind/test/fixtures/function-bind/complex-call/exec.js

@@ -0,0 +1,29 @@
+var operations = [];
+
+var lib = {};
+
+['f', 'g', 'h'].forEach(function (key) {
+  var func = function () {
+    return operations.push("lib." + key + "()");
+  };
+  Object.defineProperty(lib, key, {
+    get: function () {
+      operations.push("get lib." + key);
+      return func;
+    }
+  });
+});
+
+({prop:'value'})
+::lib.f()
+::lib.g()
+::lib.h();
+
+assert.deepEqual(operations, [
+  'get lib.f',
+  'lib.f()',
+  'get lib.g',
+  'lib.g()',
+  'get lib.h',
+  'lib.h()'
+]);

packages/babel-plugin-transform-function-bind/test/fixtures/function-bind/complex-call/expected.js

@@ -0,0 +1,11 @@
+var _context;
+
+import { map, takeWhile, forEach } from "iterlib";
+
+(_context = (_context = (_context = getPlayers(), map).call(_context, function (x) {
+  return x.character();
+}), takeWhile).call(_context, function (x) {
+  return x.strength > 100;
+}), forEach).call(_context, function (x) {
+  return console.log(x);
+});