llvm/test/Transforms/GCOVProfiling: Avoid to parse backslashes in MDString. Use %/T instead of %T.

LLVM Parser decodes "\bb" as hex in "C:\bb-win7\buildername\build...", with MDString.

See also, http://llvm.org/docs/LangRef.html#metadata-nodes-and-metadata-strings

This reverts r221270, "Disable 3 tests in llvm/test/Transforms/GCOVProfiling/ for now. Investigating."

FIXME: Please check EC in GCOVProfiler::emitProfileNotes().
llvm-svn: 221334
diff --git a/llvm/test/Transforms/GCOVProfiling/global-ctor.ll b/llvm/test/Transforms/GCOVProfiling/global-ctor.ll
index 9ca7561..1dff3f0 100644
--- a/llvm/test/Transforms/GCOVProfiling/global-ctor.ll
+++ b/llvm/test/Transforms/GCOVProfiling/global-ctor.ll
@@ -1,11 +1,9 @@
-; RUN: echo '!16 = metadata !{metadata !"%T/global-ctor.ll", metadata !0}' > %t1
+; RUN: echo '!16 = metadata !{metadata !"%/T/global-ctor.ll", metadata !0}' > %t1
 ; RUN: cat %s %t1 > %t2
 ; RUN: opt -insert-gcov-profiling -disable-output < %t2
 ; RUN: not grep '_GLOBAL__sub_I_global-ctor' %T/global-ctor.gcno
 ; RUN: rm %T/global-ctor.gcno
 
-; REQUIRES: shell
-
 @x = global i32 0, align 4
 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_global-ctor.ll, i8* null }]