[js] Adapt to evaling of JavaScript changes

Author: pmurias

src/HLL/Compiler.nqp

@@ -264,8 +264,12 @@ class HLL::Compiler does HLL::Backend::Default {
 
         my $*LIBPATH;
         if %adverbs<libpath> {
-            $*LIBPATH := nqp::split('|||', %adverbs<libpath>);
-            nqp::getcomp('JavaScript').eval('(function(paths) {nqp.libpath(paths.array)})')($*LIBPATH);
+            my $split := nqp::split('|||', %adverbs<libpath>);
+            $*LIBPATH := nqp::list_s();
+            for $split -> $str {
+                nqp::push_s($*LIBPATH, $str);
+            }
+            nqp::getcomp('JavaScript').eval('return (function(paths) {nqp.libpath(paths)})')($*LIBPATH);
         }
 
         my $*EXECNAME;

src/vm/js/HLL/Backend.nqp

@@ -277,7 +277,7 @@ class JavaScriptBackend {
                 nqp::unlink($tmp_file);
             }
         } else {
-            my $sourcemap := nqp::getcomp('JavaScript').eval('nqp.buildSourceMap')(
+            my $sourcemap := nqp::getcomp('JavaScript').eval('return nqp.buildSourceMap')(
                 $sourcemap_and_js.js,
                 $sourcemap_and_js.p6-source,
                 $sourcemap_and_js.mapping,