Merge branch 'rs/unit-tests-test-run'

Unit-test framework has learned a simple control structure to allow
embedding test statements in-line instead of having to create a new
function to contain them.

* rs/unit-tests-test-run:
  t-strvec: use if_test
  t-reftable-basics: use if_test
  t-ctype: use if_test
  unit-tests: add if_test
  unit-tests: show location of checks outside of tests
  t0080: use here-doc test body

.clang-format

@@ -196,6 +196,11 @@ ForEachMacros:
   - 'strmap_for_each_entry'
   - 'strset_for_each_entry'
 
+# A list of macros that should be interpreted as conditionals instead of as
+# function calls.
+IfMacros:
+  - 'if_test'
+
 # The maximum number of consecutive empty lines to keep.
 MaxEmptyLinesToKeep: 1