Recognize Markdown Javadoc in a couple of places that were missing.

We won't treat a Markdown Javadoc comment as such unless we have recorded it explicitly when visiting the node it is attached to, in `JavaInputAstVisitor`. That was missing for package declarations (for package Javadoc in `package-info.java`) and for enum constants. When a Markdown Javadoc comment is not recognized, it is treated as a regular `//` line comment that happens to have another `/` immediately after the opening `//`. In particular, if the comment is wrapped, the wrapped line will begin with `//` rather than `///`.

PiperOrigin-RevId: 942158710

Author: eamonnmcmanus

core/src/main/java/com/google/googlejavaformat/java/JavaInputAstVisitor.java

@@ -353,6 +353,7 @@ public Void scan(Tree tree, Void unused) {
 
   @Override
   public Void visitCompilationUnit(CompilationUnitTree node, Void unused) {
+    recordMarkdownJavadocPosition(node);
     boolean afterFirstToken = false;
     if (node.getPackageName() != null) {
       markForPartialFormat();
@@ -814,6 +815,7 @@ public Void visitEnhancedForLoop(EnhancedForLoopTree node, Void unused) {
   }
 
   private void visitEnumConstantDeclaration(VariableTree enumConstant) {
+    recordMarkdownJavadocPosition(enumConstant);
     for (AnnotationTree annotation : enumConstant.getModifiers().getAnnotations()) {
       scan(annotation, null);
       builder.forcedBreak();

core/src/test/java/com/google/googlejavaformat/java/JavadocFormattingTest.java

@@ -2092,12 +2092,11 @@ enum Foo {
   BAR,
 }
 """;
-    // TODO(b/530532338): The wrapped line should have /// not //
     String expected =
 """
 enum Foo {
   /// Long long long, longedy long, más fada an lá tig an oíche, chaise longue, caffè lungo, ich bin
-  // so lang nicht bei dir gewest
+  /// so lang nicht bei dir gewest
   BAR,
 }
 """;
@@ -2114,11 +2113,10 @@ public void markdownLongCommentOnPackageDeclaration() {
 /// Long long long, longedy long, más fada an lá tig an oíche, chaise longue, caffè lungo, ich bin so lang nicht bei dir gewest
 package com.example;
 """;
-    // TODO(b/530532338): The wrapped line should have /// not //
     String expected =
 """
 /// Long long long, longedy long, más fada an lá tig an oíche, chaise longue, caffè lungo, ich bin
-// so lang nicht bei dir gewest
+/// so lang nicht bei dir gewest
 package com.example;
 """;
     doFormatTest(input, expected);