lint_clang_format.sh: Un-skip tests and examples

These were previously skipped because clang-format was messing up our
builder-pattern code. But we got rid of the builder pattern long ago.

The actual files will be autoformatted in the next CL.

Bug: none
Change-Id: Ia01a2cabc2daa9d94a15bf44687bc2e5801b49bd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24621
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
diff --git a/scripts/lint_clang_format.sh b/scripts/lint_clang_format.sh
index 82b572c..a0ce846 100755
--- a/scripts/lint_clang_format.sh
+++ b/scripts/lint_clang_format.sh
@@ -18,7 +18,7 @@
 base_commit=$2
 
 echo
-skipped_directories="(examples|generator|src/tests/(unittests|end2end)|third_party)"
+skipped_directories="(generator|third_party)"
 # Find the files modified that need formatting
 files_to_check=$(git diff --diff-filter=ACMR --name-only $base_commit | grep -E "*\.(c|cpp|mm|h)$" | grep -vE "^$skipped_directories/*")
 if [ -z "$files_to_check" ]; then