Index: lldb/packages/Python/lldbsuite/test/lldbinline.py
===================================================================
--- lldb/packages/Python/lldbsuite/test/lldbinline.py
+++ lldb/packages/Python/lldbsuite/test/lldbinline.py
@@ -206,7 +206,7 @@
     test_func = ApplyDecoratorsToFunction(InlineTest._test, decorators)
     # Build the test case
     test_class = type(name, (InlineTest,), dict(test=test_func,
-        name=name, _build_dict=build_dict))
+        name=name, __inline_name__=name, _build_dict=build_dict))
 
     # Add the test case to the globals, and hide InlineTest
     __globals.update({name: test_class})
Index: lldb/packages/Python/lldbsuite/test/lldbtest.py
===================================================================
--- lldb/packages/Python/lldbsuite/test/lldbtest.py
+++ lldb/packages/Python/lldbsuite/test/lldbtest.py
@@ -1743,6 +1743,15 @@
         if original_testcase.NO_DEBUG_INFO_TESTCASE:
             return original_testcase
 
+        # Inline tests have one method named 'test' which means that multiple
+        # inline tests in the same file end up sharing the same build directory
+        # per variant. The '__inline_name__' attribute ensures that the
+        # (unique) test name is used instead.
+        inline_name = None
+        for attrname, attrvalue in attrs.items():
+            if attrname == "__inline_name__":
+                inline_name = "test_" + attrvalue
+
         newattrs = {}
         for attrname, attrvalue in attrs.items():
             if attrname.startswith("test") and not getattr(
@@ -1766,7 +1775,8 @@
                     def test_method(self, attrvalue=attrvalue):
                         return attrvalue(self)
 
-                    method_name = attrname + "_" + cat
+                    test_name = inline_name if inline_name else attrname
+                    method_name = test_name + "_" + cat
                     test_method.__name__ = method_name
                     test_method.debug_info = cat
                     newattrs[method_name] = test_method