Insert the error message block when stopping parsing and an error occurred

LayoutTests/fast/dom/dom-parse-parsererror-expected.txt

Index: LayoutTests/fast/dom/dom-parse-parsererror-expected.txt
diff --git a/LayoutTests/fast/dom/dom-parse-parsererror-expected.txt b/LayoutTests/fast/dom/dom-parse-parsererror-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bfc0fd0877d7c0b504cf63431ed020876022e2dc
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+++ b/LayoutTests/fast/dom/dom-parse-parsererror-expected.txt
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+This tests parsing XHTML containing various syntax errors to make sure that a <parsererror> element is added.
+Namespace prefix x for test on span is not defined
+StartTag: invalid element name
+Failed to parse QName ':test'
+Opening and ending tag mismatch: em line 0 and span
+Opening and ending tag mismatch: span line 0 and body
+Opening and ending tag mismatch: body line 0 and span
+StartTag: invalid element name
+expected '>'
+Specification mandate value for attribute novalue
+error parsing attribute name
+Failed to parse QName '::'
+Failed to parse QName 'xmlns:'
+redefinition of the xmlns prefix is forbidden
+AttValue: " or ' expected
+error parsing attribute name
+StartTag: invalid element name
+Specification mandate value for attribute p1