[lldb][NFC] Force some logging on to TestCortexMExceptionUnwind.py

to possibly debug why this test fails on the
lldb-remote-linux-ubuntu CI bot.  I'm sure the Target ArchSpec is
somehow ending up _not_ armv7m-apple-* like it should be, but I'd
like to gather a little more info before I just give up on running
this test on linux systems.

Author: jasonmolenda

lldb/test/API/functionalities/unwind/cortex-m-exception/TestCortexMExceptionUnwind.py

@@ -12,34 +12,18 @@
 class TestCortexMExceptionUnwind(TestBase):
     NO_DEBUG_INFO_TESTCASE = True
 
-    # on the lldb-remote-linux-ubuntu CI, the binary.json's triple of
-    # armv7m-apple is not being set in the Target triple, and we're
-    # picking the wrong ABI plugin, ABISysV_arm.
-    # ABISysV_arm::CreateDefaultUnwindPlan() doesn't have a way to detect
-    # arm/thumb for a stack frame, or even the Target's triple for a
-    # Cortex-M part that is always thumb.  It hardcodes r11 as the frame
-    # pointer register, which is correct for arm code but not thumb.
-    # It is never correct # on a Cortex-M target.
-    # The Darwin ABIMacOSX_arm diverges from AAPCS and always uses r7 for
-    # the frame pointer -- the thumb convention -- whether executing arm or
-    # thumb.  So its CreateDefaultUnwindPlan picks the correct register for
-    # the frame pointer, and we can walk the stack.
-    # ABISysV_arm::CreateDefaultUnwindPlan will only get one frame and
-    # not be able to continue.
-    #
-    # This may only be occuring on a 32-bit Ubuntu bot; need to test
-    # 64-bit Ubuntu and confirm.
-    @skipUnlessDarwin
     def test_no_fpu(self):
         """Test that we can backtrace correctly through an ARM Cortex-M Exception return stack"""
 
-        target = self.dbg.CreateTarget("")
         exe = "binary.json"
         with open(exe) as f:
             exe_json = json.load(f)
             exe_uuid = exe_json["uuid"]
+            triple = exe_json["triple"]
 
-        target.AddModule(exe, "", exe_uuid)
+        target = self.dbg.CreateTargetWithFileAndTargetTriple(exe, triple)
+        self.runCmd("target list")
+        self.runCmd("ima li -A -t -b")
         self.assertTrue(target.IsValid())
 
         core = self.getBuildArtifact("core")
@@ -48,12 +32,8 @@ def test_no_fpu(self):
         process = target.LoadCore(core)
         self.assertTrue(process.IsValid())
 
-        if self.TraceOn():
-            self.runCmd("target list")
-            self.runCmd("image list")
-            self.runCmd("target modules dump sections")
-            self.runCmd("target modules dump symtab")
-            self.runCmd("bt")
+        self.runCmd("target list")
+        self.runCmd("ima li -A -t -b")
 
         thread = process.GetThreadAtIndex(0)
         self.assertTrue(thread.IsValid())