GL backend: fix race condition when asserting a handle exists

libs/utils/src/debug.cpp

@@ -20,9 +20,18 @@
 
 namespace utils {
 
-void panic(const char *func, const char * file, int line, const char *assertion) noexcept {
-    PANIC_LOG("%s:%d: failed assertion `%s'\n", file, line, assertion);
+// we use a non-inlined, not marked as "no return" function for aborting so that we can set
+// a breakpoint on the call to abort() in panic() below and skip over it in the debugger if
+// needed.
+UTILS_NOINLINE
+void abort() noexcept {
     std::abort();
 }
 
+void panic(const char *func, const char * file, int line, const char *assertion) noexcept {
+    PANIC_LOG("%s:%d: failed assertion `%s'\n", file, line, assertion);
+    abort(); // set a breakpoint here
+    return;  // this line is needed to be able to move the cursor here in the debugger
+}
+
 } // namespace filament