Add a regression test for newlines.

This test includes tests for HTML newlines, which causes the XML parser in Ruffle to throw errors. Hence why it's currently ignored.

core/tests/regression_tests.rs

@@ -201,6 +201,7 @@ swf_tests! {
     (edittext_html_defaults, "avm1/edittext_html_defaults", 1),
     (edittext_align, "avm1/edittext_align", 1),
     (edittext_leading, "avm1/edittext_leading", 1),
+    #[ignore] (edittext_newlines, "avm1/edittext_newlines", 1),
 }
 
 // TODO: These tests have some inaccuracies currently, so we use approx_eq to test that numeric values are close enough.

core/tests/swfs/avm1/edittext_newlines/output.txt

@@ -0,0 +1,30 @@
+//Sample text with wordwrap
+//field.textWidth
+163
+//field.textHeight
+52
+//Sample text without wordwrap
+//field.textWidth
+380
+//field.textHeight
+18
+//Newline-having text with wordwrap
+//field.textWidth
+163
+//field.textHeight
+89
+//Newline-having text without wordwrap
+//field.textWidth
+251
+//field.textHeight
+52
+//Newline-having HTML with wordwrap
+//field.textWidth
+164
+//field.textHeight
+107
+//Newline-having HTML without wordwrap
+//field.textWidth
+741
+//field.textHeight
+18