[lld][test] Speculative fix for lld+windows failures

This updates some more places using `%T` to use `%/T` for path normalization.

If this does not work, this and r375126 should be reverted together.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@375131 91177308-0d34-0410-b5e6-96231b3b80d8

test/ELF/linkerscript/filename-spec.s

@@ -31,12 +31,12 @@
 
 # RUN: echo "SECTIONS{.foo :{ %/T/filename-spec2.o(.foo) %/T/filename-spec1.o(.foo) }}" > %t5.script
 # RUN: ld.lld -o %t5 --script %t5.script \
-# RUN:   %T/filename-spec1.o %T/filename-spec2.o
+# RUN:   %/T/filename-spec1.o %/T/filename-spec2.o
 # RUN: llvm-objdump -s %t5 | FileCheck --check-prefix=SECONDFIRST %s
 
 # RUN: echo "SECTIONS{.foo :{ %/T/filename-spec1.o(.foo) %/T/filename-spec2.o(.foo) }}" > %t6.script
 # RUN: ld.lld -o %t6 --script %t6.script \
-# RUN:   %T/filename-spec1.o %T/filename-spec2.o
+# RUN:   %/T/filename-spec1.o %/T/filename-spec2.o
 # RUN: llvm-objdump -s %t6 | FileCheck --check-prefix=FIRSTY %s
 
 # RUN: mkdir -p %t.testdir1 %t.testdir2