Add signatures to FXJS_V8.

testing/resources/javascript/apply.in

Index: testing/resources/javascript/apply.in
diff --git a/testing/resources/javascript/apply.in b/testing/resources/javascript/apply.in
new file mode 100644
index 0000000000000000000000000000000000000000..1342c1af4e71c86dfd01b091d0f9fbe68cebfe69
--- /dev/null
+++ b/testing/resources/javascript/apply.in
@@ -0,0 +1,75 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Catalog
+  /Pages 2 0 R
+  /OpenAction 10 0 R
+>>
+endobj
+{{object 2 0}} <<
+  /Type /Pages
+  /Count 1
+  /Kids [
+    3 0 R
+  ]
+>>
+endobj
+% Page number 0.
+{{object 3 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Resources <<
+    /Font <</F1 15 0 R>>
+  >>
+  /Contents [21 0 R]
+  /MediaBox [0 0 612 792]
+>>
+% OpenAction action
+{{object 10 0}} <<
+  /Type /Action
+  /S /JavaScript
+  /JS 11 0 R
+>>
+endobj
+% JS program to exexute
+{{object 11 0}} <<
+>>
+stream
+app.alert('Applying to util itself - should succeed');
+try {
+  app.alert(util.byteToChar.apply(util, [65]));
+}
+catch (e) {
+  app.alert('Caught: ' + e);
+}
+
+app.alert('Applying to array - should throw');
+try {
+  app.alert(util.byteToChar.apply([], [65]));
+}
+catch (e) {
+  app.alert('Caught: ' + e);
+}
+
+app.alert('Applying to number - should throw');
+try {
+  app.alert(util.byteToChar.apply(7, [65]));
+}
+catch (e) {
+  app.alert('Caught: ' + e);
+}
+
+app.alert('Applying to wrong native obj - should throw');
+try {
+  app.alert(util.byteToChar.apply(app, [65]));
+}
+catch (e) {
+  app.alert('Caught: ' + e);
+}
+endstream
+endobj
+{{xref}}
+trailer <<
+  /Root 1 0 R
+>>
+{{startxref}}
+%%EOF