Unify struct names and tags

src/testing/tester/tester.h

@@ -17,8 +17,8 @@ BEGIN_C_LINKAGE
 
 #define wapp_tester_run_tests(...) run_tests(__VA_ARGS__, NULL)
 
-typedef struct test_func_result TestFuncResult;
-struct test_func_result {
+typedef struct TestFuncResult TestFuncResult;
+struct TestFuncResult {
 	Str8 name;
 	b8 passed;