Remove all uses of names starting with underscore

src/testing/tester/tester.c

@@ -10,7 +10,7 @@
 
 wp_intern void handleTestResult(WpTestFuncResult result);
 
-void _runTests(WpTestFunc *func1, ...) {
+void runTests(WpTestFunc *func1, ...) {
 	printf("\n");
 
 	handleTestResult(func1());

src/testing/tester/tester.h

@@ -15,7 +15,7 @@ BEGIN_C_LINKAGE
 #define wpTesterResult(PASSED) ((WpTestFuncResult){.name = wpStr8LitRo(__func__), .passed = PASSED})
 #endif // !WP_PLATFORM_CPP
 
-#define wpTesterRun(...) _runTests(__VA_ARGS__, NULL)
+#define wpTesterRun(...) runTests(__VA_ARGS__, NULL)
 
 typedef struct WpTestFuncResult WpTestFuncResult;
 struct WpTestFuncResult {
@@ -27,7 +27,7 @@ struct WpTestFuncResult {
 
 typedef WpTestFuncResult(WpTestFunc)(void);
 
-void _runTests(WpTestFunc *func1, ...);
+void runTests(WpTestFunc *func1, ...);
 
 #ifdef WP_PLATFORM_CPP
 END_C_LINKAGE