[LibFuzzer] Split the fuzzer-oom.test into two tests.

This is necessary because the existing fuzzer-oom.test was Linux
specific due to its use of __sanitizer_print_memory_profile() which
is only available on Linux right now and so the test would fail on OSX.

Differential Revision: http://reviews.llvm.org/D20977

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272061 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Fuzzer/test/fuzzer-oom-with-profile.test

@@ -0,0 +1,6 @@
+REQUIRES: linux
+RUN: not LLVMFuzzer-OutOfMemoryTest -rss_limit_mb=10 2>&1 | FileCheck %s
+CHECK: ERROR: libFuzzer: out-of-memory (used: {{.*}}; limit: 10Mb)
+CHECK: Live Heap Allocations
+CHECK: Test unit written to ./oom-
+SUMMARY: libFuzzer: out-of-memory

lib/Fuzzer/test/fuzzer-oom.test

@@ -1,5 +1,4 @@
 RUN: not LLVMFuzzer-OutOfMemoryTest -rss_limit_mb=10 2>&1 | FileCheck %s
 CHECK: ERROR: libFuzzer: out-of-memory (used: {{.*}}; limit: 10Mb)
-CHECK: Live Heap Allocations
 CHECK: Test unit written to ./oom-
 SUMMARY: libFuzzer: out-of-memory

lib/Fuzzer/test/lit.cfg

@@ -1,4 +1,5 @@
 import lit.formats
+import sys
 
 config.name = "LLVMFuzzer"
 config.test_format = lit.formats.ShTest(True)
@@ -25,3 +26,10 @@ if config.has_lsan:
 else:
   lit_config.note('lsan feature unavailable')
 
+if sys.platform.startswith('linux'):
+  # Note the value of ``sys.platform`` is not consistent
+  # between python 2 and 3, hence the use of ``.startswith()``.
+  lit_config.note('linux feature available')
+  config.available_features.add('linux')
+else:
+  lit_config.note('linux feature unavailable')