Resolve module paths relative to the current module (#2976)

The current module implementation resolves module paths relative to the
current working directory, but paths should be resolved relative to the
currently evaluated module/source.

This requires a change in the jerry_port_normalize_path port API
function, so that it also takes the current module path as an argument.
On the engine side, we now also create a module object for the main
script, so that we can properly identify the base path for other
modules.

Co-authored-by: Marko Fabo <mfabo@inf.u-szeged.hu>
JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu

tests/jerry/es2015/module-export-02.js

@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-export {} from "tests/jerry/es2015/module-export-01.js";
-export {aa,} from "tests/jerry/es2015/module-export-01.js";
-export {bb as b_, cc as c_} from "tests/jerry/es2015/module-export-01.js";
-export * from "tests/jerry/es2015/module-export-01.js";
+export {} from "module-export-01.js";
+export {aa,} from "module-export-01.js";
+export {bb as b_, cc as c_} from "module-export-01.js";
+export * from "module-export-01.js";
 export default function () {return "default"};

tests/jerry/es2015/module-export-03.js

@@ -23,4 +23,4 @@ export default class {
   }
 }
 
-export * from "tests/jerry/es2015/module-export-02.js"
+export * from "module-export-02.js"

tests/jerry/es2015/module-export-05.js

@@ -13,6 +13,6 @@
  * limitations under the License.
  */
 
-export * from "tests/jerry/es2015/module-export-01.js";
-export * from "tests/jerry/es2015/module-export-04.js";
+export * from "module-export-01.js";
+export * from "module-export-04.js";
 export default a = "str"

tests/jerry/es2015/module-export-06.js

@@ -14,6 +14,6 @@
  */
 
 export {}
-export {} from "tests/jerry/es2015/module-export-01.js";
+export {} from "module-export-01.js";
 export {};
-export {} from "tests/jerry/es2015/module-export-04.js"
+export {} from "module-export-04.js"

tests/jerry/es2015/module-import-01.js

@@ -13,13 +13,13 @@
  * limitations under the License.
  */
 
-import "tests/jerry/es2015/module-export-01.js";
-import def from "tests/jerry/es2015/module-export-01.js";
-import {} from "tests/jerry/es2015/module-export-01.js";
-import {aa as a,} from "tests/jerry/es2015/module-export-01.js";
-import {bb as b, cc as c} from "tests/jerry/es2015/module-export-01.js";
-import {x} from "tests/jerry/es2015/module-export-01.js";
-import * as mod from "tests/jerry/es2015/module-export-01.js";
+import "./module-export-01.js";
+import def from "module-export-01.js";
+import {} from "module-export-01.js";
+import {aa as a,} from "module-export-01.js";
+import {bb as b, cc as c} from "module-export-01.js";
+import {x} from "module-export-01.js";
+import * as mod from "module-export-01.js";
 
 assert (def === "default");
 assert (a === "a");

tests/jerry/es2015/module-import-02.js

@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import def, * as mod from "tests/jerry/es2015/module-export-02.js";
-import {b_, c_,} from "tests/jerry/es2015/module-export-02.js";
+import def, * as mod from "module-export-02.js";
+import {b_, c_,} from "module-export-02.js";
 
 assert (def() === "default")
 assert (mod.aa === "a")

tests/jerry/es2015/module-import-03.js

@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import incrementer, {aa, c_, x,} from "tests/jerry/es2015/module-export-03.js"
+import incrementer, {aa, c_, x,} from "module-export-03.js"
 var i = new incrementer(3);
 assert(i.incr() === 4);
 assert(i.incr() === 5);

tests/jerry/es2015/module-import-04.js

@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import "tests/jerry/es2015/module-import-01.js"
-import "tests/jerry/es2015/module-export-05.js"
-import "tests/jerry/es2015/module-export-06.js"
-import "tests/jerry/es2015/module-export-07.js"
+import "module-import-01.js";
+import "module-export-05.js";
+import "module-export-06.js";
+import "module-export-07.js";