[compiler-rt][rtsan] NFC: Rename rtsan_on->rtsan_enable rtsan_off->rtsan_disable (#106727)

This better matches lsan_enable and disable, which we are trying to
emulate.

Author: cjappl

compiler-rt/lib/rtsan/rtsan.cpp

@@ -58,11 +58,11 @@ SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_realtime_exit() {
   __rtsan::GetContextForThisThread().RealtimePop();
 }
 
-SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_off() {
+SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_disable() {
   __rtsan::GetContextForThisThread().BypassPush();
 }
 
-SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_on() {
+SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_enable() {
   __rtsan::GetContextForThisThread().BypassPop();
 }
 

compiler-rt/lib/rtsan/rtsan.h

@@ -38,11 +38,11 @@ SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_realtime_exit();
 
 // Disable all RTSan error reporting.
 // Injected into the code if "nosanitize(realtime)" is on a function.
-SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_off();
+SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_disable();
 
 // Re-enable all RTSan error reporting.
-// The counterpart to `__rtsan_off`.
-SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_on();
+// The counterpart to `__rtsan_disable`.
+SANITIZER_INTERFACE_ATTRIBUTE void __rtsan_enable();
 
 SANITIZER_INTERFACE_ATTRIBUTE void
 __rtsan_expect_not_realtime(const char *intercepted_function_name);

compiler-rt/lib/rtsan/tests/rtsan_test_functional.cpp

@@ -204,10 +204,10 @@ TEST(TestRtsan, ThrowingAnExceptionDiesWhenRealtime) {
 TEST(TestRtsan, DoesNotDieIfTurnedOff) {
   std::mutex mutex;
   auto RealtimeUnsafeFunc = [&]() {
-    __rtsan_off();
+    __rtsan_disable();
     mutex.lock();
     mutex.unlock();
-    __rtsan_on();
+    __rtsan_enable();
   };
   RealtimeInvoke(RealtimeUnsafeFunc);
 }