[lldb] Make TestAArch64AdrpAdd depend on the AArch64 target

[teemperor]

Summary

LLDB is using LLVM's target-specific disassembler which is only available
when the respective LLVM target has been enabled in the build config.

This patch just skips the test if there is no arm64 target (and its disassembler)
available in the current build config.

[jasonmolenda]

Thanks!! I missed that.

lldb/test/API/functionalities/disassemble/aarch64-adrp-add/TestAArch64AdrpAdd.py

 """
 Test that the arm64 ADRP + ADD pc-relative addressing pair is symbolicated.
 """
 
 from lldbsuite.test.decorators import *
 from lldbsuite.test.lldbtest import *
 from lldbsuite.test import lldbutil
 
 class TestAArch64AdrpAdd(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
 
     @no_debug_info_test
+    @skipIfLLVMTargetMissing("AArch64")
     def test_arm64(self):
         src_dir = self.getSourceDir()
         yaml_path = os.path.join(src_dir, "a.out-arm64.yaml")
         obj_path = self.getBuildArtifact("a.out-arm64")
         self.yaml2obj(yaml_path, obj_path)
 
         target = self.dbg.CreateTarget(obj_path)
         self.assertTrue(target, VALID_TARGET)
 
         mains = target.FindFunctions("main")
         for f in mains.symbols:
             binaryname = f.GetStartAddress().GetModule().GetFileSpec().GetFilename()
             if binaryname == "a.out-arm64":
                 self.disassemble_check_for_hi_and_foo(target, f, binaryname)
 
     @no_debug_info_test
+    @skipIfLLVMTargetMissing("AArch64")
     def test_arm64_32(self):
         src_dir = self.getSourceDir()
         yaml_path = os.path.join(src_dir, "a.out-arm64_32.yaml")
         obj_path = self.getBuildArtifact("a.out-arm64_32")
         self.yaml2obj(yaml_path, obj_path)
 
         target = self.dbg.CreateTarget(obj_path)
         self.assertTrue(target, VALID_TARGET)