[clang][driver] Add missing integrated tool option in error message, NFC (#81926)

Author: cyndyishida

clang/test/Driver/unknown-arg.c

@@ -59,7 +59,7 @@
 // SILENT-NOT: warning:
 // CC1AS-DID-YOU-MEAN: error: unknown argument '-hell'; did you mean '-help'?
 // CC1AS-DID-YOU-MEAN: error: unknown argument '--version'; did you mean '-version'?
-// UNKNOWN-INTEGRATED: error: unknown integrated tool '-cc1asphalt'. Valid tools include '-cc1' and '-cc1as'.
+// UNKNOWN-INTEGRATED: error: unknown integrated tool '-cc1asphalt'. Valid tools include '-cc1', '-cc1as' and '-cc1gen-reproducer'.
 
 // RUN: %clang -S %s -o %t.s  -Wunknown-to-clang-option 2>&1 | FileCheck --check-prefix=IGNORED %s
 

clang/tools/driver/driver.cpp

@@ -369,8 +369,9 @@ static int ExecuteCC1Tool(SmallVectorImpl<const char *> &ArgV,
     return cc1gen_reproducer_main(ArrayRef(ArgV).slice(2), ArgV[0],
                                   GetExecutablePathVP, ToolContext);
   // Reject unknown tools.
-  llvm::errs() << "error: unknown integrated tool '" << Tool << "'. "
-               << "Valid tools include '-cc1' and '-cc1as'.\n";
+  llvm::errs()
+      << "error: unknown integrated tool '" << Tool << "'. "
+      << "Valid tools include '-cc1', '-cc1as' and '-cc1gen-reproducer'.\n";
   return 1;
 }