Use os.path.sep instead of condition

Signed-off-by: Gregory Shimansky <[email protected]>

Author: gshimansky

python/test/unit/language/test_compile_errors.py

@@ -7,7 +7,6 @@
 import triton.language as tl
 from triton.compiler.errors import CompilationError, CompileTimeAssertionFailure
 import traceback
-import platform
 
 
 def is_interpreter():
@@ -155,8 +154,7 @@ def kernel():
     try:
         inner = e.value.__cause__
         outer = e.value
-        target = "\\core.py" if platform.system() == 'Windows' else "/core.py"
-        assert target in '\n'.join(traceback.format_tb(inner.__traceback__)), "error should point inside core.py"
+        assert os.path.sep + "core.py" in '\n'.join(traceback.format_tb(inner.__traceback__)), "error should point inside core.py"
 
         assert "at 2:4:" in str(outer), "error should point to expand_dims call"
         assert "<source unavailable>" not in str(outer)