[lldb/Test] Add skipIfReproducer for tests that are not expected to work

Some tests are not expected to work with reproducers, for example tests
that completely circumvent the reproducers (i.e. using the side_effects
Python module) or that rely on changes to the file system.

lldb/test/API/functionalities/breakpoint/breakpoint_command/TestBreakpointCommand.py

@@ -17,12 +17,14 @@ class BreakpointCommandTestCase(TestBase):
     mydir = TestBase.compute_mydir(__file__)
 
     @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24528")
+    @skipIfReproducer # side_effect bypasses reproducer
     def not_test_breakpoint_command_sequence(self):
         """Test a sequence of breakpoint command add, list, and delete."""
         self.build()
         self.breakpoint_command_sequence()
 
     @skipIf(oslist=["windows"], bugnumber="llvm.org/pr44431")
+    @skipIfReproducer # side_effect bypasses reproducer
     def test_script_parameters(self):
         """Test a sequence of breakpoint command add, list, and delete."""
         self.build()

lldb/test/API/functionalities/inferior-changed/TestInferiorChanged.py

@@ -16,6 +16,7 @@ class ChangedInferiorTestCase(TestBase):
 
     @skipIf(hostoslist=["windows"])
     @no_debug_info_test
+    @skipIfReproducer # VFS is a snapshot.
     def test_inferior_crashing(self):
         """Test lldb reloads the inferior after it was changed during the session."""
         self.build()

lldb/test/API/lang/objc/modules-update/TestClangModulesUpdate.py

@@ -14,6 +14,7 @@ class TestClangModuleUpdate(TestBase):
 
     @skipUnlessDarwin
     @skipIf(debug_info=no_match(["gmodules"]))
+    @skipIfReproducer # VFS is a snapshot.
     def test_expr(self):
         with open(self.getBuildArtifact("module.modulemap"), "w") as f:
             f.write("""