[profile] Un-hide two symbols

- lprofCurFilename was intended to have external visibility. This is
  pending further discussion.
- The raw version number doesn't need to be hidden: hiding it may make
  it easier to accidentally combine FE/IR profiles.

See the mailing list discussion on r272081.

llvm-svn: 272089
diff --git a/compiler-rt/lib/profile/InstrProfilingFile.c b/compiler-rt/lib/profile/InstrProfilingFile.c
index 815aae7..856d8f7 100644
--- a/compiler-rt/lib/profile/InstrProfilingFile.c
+++ b/compiler-rt/lib/profile/InstrProfilingFile.c
@@ -30,7 +30,7 @@
   unsigned NumHosts;
 } lprofFilename;
 
-COMPILER_RT_VISIBILITY lprofFilename lprofCurFilename = {0, {0}, {0}, 0, 0};
+lprofFilename lprofCurFilename = {0, {0}, {0}, 0, 0};
 
 int getpid(void);
 static int getCurFilenameLength();