Fixes Text Parser being impacted by overrides to codeblock widget (#7844)

* fix: overriding codeblock widget should not impact text parser

* fix: whitespace changes

core/modules/parsers/textparser.js

@@ -14,10 +14,12 @@ The plain text parser processes blocks of source text into a degenerate parse tr
 
 var TextParser = function(type,text,options) {
 	this.tree = [{
-		type: "codeblock",
+		type: "genesis",
 		attributes: {
-			code: {type: "string", value: text},
-			language: {type: "string", value: type}
+			$type: {name: "$type", type: "string", value: "$codeblock"},
+			code: {name: "code", type: "string", value: text},
+			language: {name: "language", type: "string", value: type},
+			$remappable: {name: "$remappable", type:"string", value: "no"}
 		}
 	}];
 	this.source = text;
@@ -32,4 +34,3 @@ exports["text/css"] = TextParser;
 exports["application/x-tiddler-dictionary"] = TextParser;
 
 })();
-

editions/test/tiddlers/tests/data/transclude/CustomWidget-CodeblockOverride-TextParser.tid

@@ -0,0 +1,20 @@
+title: Transclude/CustomWidget/CodeblockOverride-TextParser
+description: Test that overriding codeblock widget does not impact text parser
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+\widget $codeblock(code)
+<$transclude $variable="copy-to-clipboard" src=<<code>>/>
+<$genesis $type="$codeblock" $remappable="no" code=<<code>>/>
+\end
+
+\procedure myvariable() hello
+
+<$transclude $variable="myvariable" $type="text/plain" $output="text/plain"/>
++
+title: ExpectedResult
+
+<p>hello</p>