Add test for #13079 (#18693)

tests/format/js/if/__snapshots__/format.test.js.snap

@@ -323,6 +323,10 @@ async function f5() {
   }
 }
 
+// https://github.com/prettier/prettier/issues/13079
+if (dotPos > this.pos) /** transition forward */;
+      else /** transition backward */;
+
 =====================================output=====================================
 async function f1() {
   if (untrackedChoice === 0) /* Cancel */ {
@@ -375,6 +379,10 @@ async function f5() {
   }
 }
 
+// https://github.com/prettier/prettier/issues/13079
+if (dotPos > this.pos) /** transition forward */ ;
+else /** transition backward */ ;
+
 ================================================================================
 `;
 

tests/format/js/if/if_comments.js

@@ -53,3 +53,7 @@ async function f5() {
     /* Allow Untracked */ allowUntracked = true;
   }
 }
+
+// https://github.com/prettier/prettier/issues/13079
+if (dotPos > this.pos) /** transition forward */;
+      else /** transition backward */;