[asan] Reduce flakiness of halt_on_error-torture.cc testcase.

It seems in some situations we have clashes on very first error so test only prints "nested bug in the same thread, aborting" rather than "use-after-poison", so remove corresponding " RUN: FileCheck %s < 10.txt" line.
Also, the two last " RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 1.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 1.txt" look wrong, they should check 10.txt. Fix these lines too.

Differential Revision: https://reviews.llvm.org/D22309


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@275539 91177308-0d34-0410-b5e6-96231b3b80d8

Author: Maxim Ostapenko

test/asan/TestCases/Posix/halt_on_error-torture.cc

@@ -9,15 +9,11 @@
 //
 // Collisions are unlikely but still possible so we need the ||.
 // RUN: %env_asan_opts=halt_on_error=false:suppress_equal_pcs=false %run %t 10 20 >10.txt 2>&1 || true
-// This one is racy although _very_ unlikely to fail:
-// RUN: FileCheck %s < 10.txt
-// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 1.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 1.txt
+// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 10.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 10.txt
 //
 // Collisions are unlikely but still possible so we need the ||.
 // RUN: %env_asan_opts=halt_on_error=false %run %t 10 20 >10.txt 2>&1 || true
-// This one is racy although _very_ unlikely to fail:
-// RUN: FileCheck %s < 10.txt
-// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 1.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 1.txt
+// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 10.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 10.txt
 
 #include <stdio.h>
 #include <stdlib.h>