[lldb][test] Fix TestStdCXXDisassembly test when tests are linked with libc++ statically

The test expects 'libstdc++' or 'libc++' SO module in the module list.
In case when static linking with libc++ is on by default, none of them
may be present.

Thus, USE_SYSTEM_STDLIB is added to ensure presence of any of them.

Author: vvereschaka

lldb/test/API/lang/cpp/stl/Makefile

@@ -1,3 +1,5 @@
 CXX_SOURCES := main.cpp
 
+USE_SYSTEM_STDLIB := 1
+
 include Makefile.rules

lldb/test/API/lang/cpp/stl/TestStdCXXDisassembly.py

@@ -44,7 +44,7 @@ def test_stdcxx_disasm(self):
         # module is the corresponding SBModule.
 
         self.expect(
-            lib_stdcxx, "Libraray StdC++ is located", exe=False, substrs=["lib"]
+            lib_stdcxx, "Library StdC++ is located", exe=False, substrs=["lib"]
         )
 
         self.runCmd("image dump symtab '%s'" % lib_stdcxx)