[lldb] Add required skipIfLLVMTargetMissing for X86 (NFC)

Author: kastiglione

lldb/test/API/macosx/rosetta/TestRosetta.py

@@ -40,6 +40,7 @@ class TestRosetta(TestBase):
     NO_DEBUG_INFO_TESTCASE = True
 
     @skipUnlessAppleSilicon
+    @skipIfLLVMTargetMissing("X86")
     @skipIfDarwinEmbedded
     def test_rosetta(self):
         """There can be many tests in a test case - describe this test here."""

lldb/test/API/macosx/universal64/TestUniversal64.py

@@ -17,6 +17,7 @@ def do_test(self):
         # actually launch them here.
 
     # The Makefile manually invokes clang.
+    @skipIfLLVMTargetMissing("X86")
     @skipIfAsan
     @skipUnlessDarwin
     @skipIfDarwinEmbedded
@@ -26,6 +27,7 @@ def test_universal64_executable(self):
         self.do_test()
 
     # The Makefile manually invokes clang.
+    @skipIfLLVMTargetMissing("X86")
     @skipIfAsan
     @skipUnlessDarwin
     @skipIfDarwinEmbedded