[lldb][test] TestConstStaticIntegralMember.py: fix on older clang versions

`638a8393615e911b729d5662096f60ef49f1c65e` removed the `dsym`
condition for older compiler versions which caused the `dwarf`
variants tests to XPASS. This patch reverts to only XFAIL-ing
the `dsym` variant.

`15c80852028ff4020b3f85ee13ad3a2ed4bce3be` added
`test_shadowed_static_inline_members` which isn't supported
on older compiler versions.

Author: Michael137

lldb/test/API/lang/cpp/const_static_integral_member/TestConstStaticIntegralMember.py

@@ -105,7 +105,9 @@ def test(self):
     # For debug-info produced by older versions of clang, dsymutil strips the
     # debug info for classes that only have const static data members without
     # definitions.
-    @expectedFailureAll(compiler=["clang"], compiler_version=["<", "18.0"])
+    @expectedFailureAll(
+        debug_info=["dsym"], compiler=["clang"], compiler_version=["<", "18.0"]
+    )
     def test_class_with_only_const_static(self):
         self.build()
         lldbutil.run_to_source_breakpoint(
@@ -172,6 +174,9 @@ def test_class_with_only_constexpr_static(self):
             "ClassWithEnumAlias::enum_alias_alias", result_value="scoped_enum_case1"
         )
 
+    # With older versions of Clang, LLDB fails to evaluate classes with only
+    # constexpr members when dsymutil is enabled
+    @expectedFailureAll(compiler=["clang"], compiler_version=["<", "18.0"])
     def test_shadowed_static_inline_members(self):
         """Tests that the expression evaluator and SBAPI can both
         correctly determine the requested inline static variable