build(docs-infra): mark code blocks to disable auto-linking (#26675)

You can now mark `<code>` blocks with a `no-auto-link` css class
to tell the code auto-linker to ignore this code block.

PR Close #26675

aio/tools/transforms/angular-base-package/post-processors/auto-link-code.js

@@ -30,7 +30,9 @@ module.exports = function autoLinkCode(getDocFromAlias) {
     return (ast) => {
       visit(ast, 'element', (node, ancestors) => {
         // Only interested in code elements that are not inside links
-        if (autoLinkCodeImpl.codeElements.some(elementType => is(node, elementType)) &&
+        if (autoLinkCodeImpl.codeElements.some(elementType =>
+            is(node, elementType)) &&
+            (!node.properties.className || node.properties.className.indexOf('no-auto-link') === -1) &&
             ancestors.every(ancestor => !is(ancestor, 'a'))) {
           visit(node, 'text', (node, ancestors) => {
             // Only interested in text nodes that are not inside links

aio/tools/transforms/angular-base-package/post-processors/auto-link-code.spec.js

@@ -109,4 +109,11 @@ describe('autoLinkCode post-processor', () => {
     processor.$process([doc]);
     expect(doc.renderedContent).toEqual('<code-example><a href="a/b/myclass" class="code-anchor">MyClass</a></code-example>');
   });
+
+  it('should ignore code blocks that are marked with a `no-auto-link` class', () => {
+    aliasMap.addDoc({ docType: 'class', id: 'MyClass', aliases: ['MyClass'], path: 'a/b/myclass' });
+    const doc = { docType: 'test-doc', renderedContent: '<code class="no-auto-link">MyClass</code>' };
+    processor.$process([doc]);
+    expect(doc.renderedContent).toEqual('<code class="no-auto-link">MyClass</code>');
+  });
 });