Add missing handling for EmbeddedStatement and case rules in `ToStr…

…ingRenderer`.

PiperOrigin-RevId: 733602855

transpiler/java/com/google/j2cl/transpiler/ast/ToStringRenderer.java

@@ -191,6 +191,12 @@ public boolean enterDoWhileStatement(DoWhileStatement doWhileStatement) {
         return false;
       }
 
+      @Override
+      public boolean enterEmbeddedStatement(EmbeddedStatement embeddedStatement) {
+        accept(embeddedStatement.getStatement());
+        return false;
+      }
+
       @Override
       public boolean enterExpression(Expression expression) {
         print("<expr>");
@@ -421,6 +427,10 @@ public boolean enterReturnStatement(ReturnStatement returnStatement) {
       @Override
       public boolean enterYieldStatement(YieldStatement yieldStatement) {
         print("yield");
+        if (yieldStatement.getLabelReference() != null) {
+          print("@");
+          accept(yieldStatement.getLabelReference());
+        }
         if (yieldStatement.getExpression() != null) {
           print(" ");
           accept(yieldStatement.getExpression());
@@ -453,7 +463,7 @@ public boolean enterSwitchCase(SwitchCase switchCase) {
           print("case ");
           printSeparated(", ", switchCase.getCaseExpressions());
         }
-        print(getParent() instanceof SwitchExpression ? " ->" : ":");
+        print(switchCase.canFallthrough() ? ":" : " ->");
         indent();
         for (Statement statement : switchCase.getStatements()) {
           newLine();