Adding extra line unexpectedly breaks optimization remark test

I was updating some tests to work with the new pass manager and I ran into something weird with clang/test/Frontend/optimization-remark-with-hotness.c. If you add a comment (or even just an empty line) before an expected-remark in the test, it fails and makes the expected diagnostic not appear anymore.

Original:

56 void bar(int x) {
...
63 // expected-remark@+1 {{foo inlined into bar with (cost=always): always inliner (hotness:}}
64 sum += foo(x, x - 2);
65 }

Breaking:

56 void bar(int x) {
...
63 // random comment
64 // expected-remark@+1 {{foo inlined into bar with (cost=always): always inliner (hotness:}}
65 sum += foo(x, x - 2);
66 }

with error:

error: 'remark' diagnostics expected but not seen:
File /usr/local/google/home/leonardchan/llvm-monorepo/llvm-project-2/clang/test/Frontend/optimization-remark-with-hotness.c Line 65 (directive at /usr/local/google/home/leonardchan/llvm-monorepo/llvm-project-2/clang/test/Frontend/optimization-remark-with-hotness.c:65): foo inlined into bar with (cost=always): always inliner (hotness:
1 error generated.

This appears to be the case even if the added text is just a newline, or anywhere else within function bar(). I don’t think this has to due with changing anything -verify checks for since the remark doesn’t appear still even without -verify.

The run that breaks is:

19 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
20 // RUN: optimization-remark-with-hotness.c %s -emit-llvm-only \
21 // RUN: -fprofile-sample-use=%t-sample.profdata -Rpass=inline \
22 // RUN: -Rpass-analysis=inline -Rpass-missed=inline \
23 // RUN: -fdiagnostics-show-hotness -fdiagnostics-hotness-threshold=10 \
24 // RUN: -verify

The test seems to pass and diagnostic appears if I remove -fdiagnostics-hotness-threshold=10. Is it possible that this is intended and extra comments affects hotness?

Thanks,
Leonard