XFail TestMemoryFind on 32-bit architectures

the test fails for a very prosaic reason: `(const char *)0x1000` returns "4096" on x86_64 and
"1000" (without the "0x") on i386. I haven't tried other 32-bit arches, but I am guessing the
behaviour is the same. XFAIL until someone can get a chance to look at this.

llvm-svn: 280344

lldb/packages/Python/lldbsuite/test/functionalities/memory/find/TestMemoryFind.py

@@ -11,6 +11,7 @@ import re
 import lldb
 from lldbsuite.test.lldbtest import *
 import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.decorators import *
 
 class MemoryFindTestCase(TestBase):
 
@@ -22,6 +23,7 @@ class MemoryFindTestCase(TestBase):
         # Find the line number to break inside main().
         self.line = line_number('main.cpp', '// break here')
 
+    @expectedFailureAll(archs=["i386", "arm"])
     def test_memory_find(self):
         """Test the 'memory find' command."""
         self.build()