change some magic numbers to hoist exports

fixes #4753

lib/dependencies/HarmonyCompatibilityDependency.js

@@ -22,7 +22,7 @@ HarmonyCompatibilityDependency.Template = class HarmonyExportDependencyTemplate
 		if(usedExports && !Array.isArray(usedExports)) {
 			const exportName = dep.originModule.exportsArgument || "exports";
 			const content = `Object.defineProperty(${exportName}, \"__esModule\", { value: true });\n`;
-			source.insert(-1, content);
+			source.insert(-10, content);
 		}
 	}
 };

lib/dependencies/HarmonyExportDependencyParserPlugin.js

@@ -45,7 +45,7 @@ module.exports = class HarmonyExportDependencyParserPlugin {
 			} else {
 				const immutable = statement.declaration && isImmutableStatement(statement.declaration);
 				const hoisted = statement.declaration && isHoistedStatement(statement.declaration);
-				dep = new HarmonyExportSpecifierDependency(parser.state.module, id, name, !immutable || hoisted ? -0.5 : (statement.range[1] + 0.5), immutable);
+				dep = new HarmonyExportSpecifierDependency(parser.state.module, id, name, !immutable || hoisted ? -2 : (statement.range[1] + 0.5), immutable);
 			}
 			dep.loc = Object.create(statement.loc);
 			dep.loc.index = idx;

test/cases/parsing/harmony-export-hoist/bar.js

@@ -0,0 +1,6 @@
+import { foo, foo2 } from "./foo";
+
+export default {
+	foo: foo,
+	foo2: foo2
+};

test/cases/parsing/harmony-export-hoist/foo.js

@@ -0,0 +1,12 @@
+import {bar} from "./bar";
+
+export function foo() {
+	return "ok";
+}
+
+function foo2() {
+	return "ok";
+}
+export { foo2 }
+
+export { default } from "./bar";

test/cases/parsing/harmony-export-hoist/index.js

@@ -0,0 +1,9 @@
+"use strict";
+
+it("should hoist exports", function() {
+	var result = require("./foo").default;
+	(typeof result.foo).should.have.eql("function");
+	(typeof result.foo2).should.have.eql("function");
+	result.foo().should.be.eql("ok");
+	result.foo2().should.be.eql("ok");
+});