Revert "[lldb] Don't send invalid region addresses to lldb server"

This reverts commit c687af0
due to a test failure on Windows.

Author: DavidSpickett

lldb/source/Commands/CommandObjectMemory.cpp

@@ -1707,7 +1707,6 @@ class CommandObjectMemoryRegion : public CommandObjectParsed {
                 "invalid address argument \"%s\": %s\n", command[0].c_str(),
                 error.AsCString());
             result.SetStatus(eReturnStatusFailed);
-            return false;
           }
         }
 

lldb/test/API/functionalities/memory-region/TestMemoryRegion.py

@@ -41,12 +41,6 @@ def test(self):
         self.assertFalse(result.Succeeded())
         self.assertRegexpMatches(result.GetError(), "Usage: memory region ADDR")
 
-        # Test that when the address fails to parse, we show an error and do not continue
-        interp.HandleCommand("memory region not_an_address", result)
-        self.assertFalse(result.Succeeded())
-        self.assertEqual(result.GetError(),
-                "error: invalid address argument \"not_an_address\": address expression \"not_an_address\" evaluation failed\n")
-
         # Now let's print the memory region starting at 0 which should always work.
         interp.HandleCommand("memory region 0x0", result)
         self.assertTrue(result.Succeeded())