translate_c: prevent a while under an if from stealing the else

test/run_translated_c.zig

@@ -1767,4 +1767,21 @@ pub fn addCases(cases: *tests.RunTranslatedCContext) void {
         \\   return 0;
         \\}
     , "");
+
+    cases.add("Ensure while loop under an if doesn't steal the else. Issue #9953",
+        \\#include <stdio.h>
+        \\void doWork(int id) { }
+        \\int reallyDelete(int id) { printf("deleted %d\n", id); return 1; }
+        \\int process(int id, int n, int delete) {
+        \\    if(!delete)
+        \\        while(n-- > 0) doWork(id);
+        \\    else
+        \\        return reallyDelete(id);
+        \\    return 0;
+        \\}
+        \\int main(void) {
+        \\    process(99, 3, 0);
+        \\    return 0;
+        \\}
+    , "");
 }