[fix test] Move typedefs-with-same-name.test into ARM folder (#167005)

#166767 mistakenly put the test
file outside the ARM folder, causing build bots that only have an x86
target to fail. Moving it into the ARM folder.

```
royshi-mac-home ~/public_llvm/build % bin/llvm-lit \
    ../llvm-project/llvm/test/tools/dsymutil/ARM/typedefs-with-same-name.test \
    ../llvm-project/llvm/test/tools/dsymutil/X86/DWARFLinkerParallel/odr-fwd-declaration.test
-- Testing: 2 tests, 2 workers --
PASS: LLVM :: tools/dsymutil/ARM/typedefs-with-same-name.test (1 of 2)
PASS: LLVM :: tools/dsymutil/X86/DWARFLinkerParallel/odr-fwd-declaration.test (2 of 2)

Testing Time: 0.23s

Total Discovered Tests: 2
  Passed: 2 (100.00%)
```

Author: royitaqi

llvm/test/tools/dsymutil/typedefs-with-same-name.test renamed to llvm/test/tools/dsymutil/ARM/typedefs-with-same-name.test

@@ -1,4 +1,4 @@
-#RUN: dsymutil --linker=parallel -f -oso-prepend-path=%p/Inputs/ -y %s -o %t.dwarf
+#RUN: dsymutil --linker=parallel -f -oso-prepend-path=%p/../Inputs/ -y %s -o %t.dwarf
 #RUN: llvm-dwarfdump %t.dwarf | FileCheck %s
 
 # There should be two typedef DIE named "BarInt" in the resultant .dwarf file.