avm2: Return correct error for unclosed tags

Author: SuchAFuriousDeath

core/src/avm2/e4x.rs

@@ -77,12 +77,19 @@ fn make_xml_error<'gc>(activation: &mut Activation<'_, 'gc>, err: XmlError) -> E
                 "Error #1094: XML parser failure: Unterminated comment.",
                 1094,
             ),
+            // FIXME: Based on circumstance, this branch should produce Error #1092 or Error #1097.
+            // Doing so should fix the from_avmplus/as3/RuntimeErrors/Error1092XmlUnterminatedXmlDecl test.
             XmlSyntaxError::UnclosedPIOrXmlDecl => type_error(
                 activation,
                 "Error #1097: XML parser failure: Unterminated processing instruction.",
                 1097,
             ),
-            _ => type_error(
+            XmlSyntaxError::UnclosedTag => type_error(
+                activation,
+                "Error #1095: XML parser failure: Unterminated attribute.",
+                1095,
+            ),
+            XmlSyntaxError::InvalidBangMarkup => type_error(
                 activation,
                 "Error #1090: XML parser failure: element is malformed.",
                 1090,

tests/tests/swfs/from_avmplus/as3/RuntimeErrors/Error1095XmlUnterminatedAttr/test.toml

@@ -1,2 +1 @@
 num_ticks = 1
-known_failure = true