[Patch testsuite/darwin] adjust new gcov tests for darwin.

[Iain Sandoe]

Darwin uses ".private_extern" for hidden visibility, and also we have  
__USER_LABEL_PREFIX__ set to "_".
OK for trunk?
Iaingcc/testsuite:

        * gcc.misc-tests/gcov-16.c: Adjust scan-assembler for Darwin.
        * gcc.misc-tests/gcov-17.c: Likewise.
        * g++.dg/gcov/gcov-8.C: Likewise.
        * g++.dg/gcov/gcov-9.C: Likewise.

Index: gcc/testsuite/gcc.misc-tests/gcov-16.c
===================================================================
--- gcc/testsuite/gcc.misc-tests/gcov-16.c      (revision 181539)
+++ gcc/testsuite/gcc.misc-tests/gcov-16.c      (working copy)
@@ -8,4 +8,5 @@ void Foo ()
 {
 }
 
- /* { dg-final { scan-assembler "\\.hidden\t__gcov__Foo" } } */
+ /* { dg-final { scan-assembler "\\.hidden\t__gcov__Foo" { target { ! 
*-*-darwin*  } } } } */
+ /* { dg-final { scan-assembler "\\.private_extern ___gcov__Foo" { target 
*-*-darwin* } } } */
Index: gcc/testsuite/gcc.misc-tests/gcov-17.c
===================================================================
--- gcc/testsuite/gcc.misc-tests/gcov-17.c      (revision 181539)
+++ gcc/testsuite/gcc.misc-tests/gcov-17.c      (working copy)
@@ -8,4 +8,5 @@ void __attribute__ ((visibility ("hidden"), weak))
 {
 }
 
-/* { dg-final { scan-assembler "\\.hidden\t__gcov__Foo" } } */
+/* { dg-final { scan-assembler "\\.hidden\t__gcov__Foo" { target { ! 
*-*-darwin*  } } } } */
+/* { dg-final { scan-assembler "\\.private_extern ___gcov__Foo" { target 
*-*-darwin* } } } */
Index: gcc/testsuite/g++.dg/gcov/gcov-8.C
===================================================================
--- gcc/testsuite/g++.dg/gcov/gcov-8.C  (revision 181539)
+++ gcc/testsuite/g++.dg/gcov/gcov-8.C  (working copy)
@@ -10,4 +10,5 @@ void X::Fink ()
 {
 }
 
-/* { dg-final { scan-assembler "\\.hidden\t__gcov___ZN1X4FinkEv" } } */
+/* { dg-final { scan-assembler "\\.hidden\t__gcov___ZN1X4FinkEv" { target { ! 
*-*-darwin*  } } } } */
+/* { dg-final { scan-assembler "\\.private_extern ___gcov___ZN1X4FinkEv" { 
target *-*-darwin* } } } */
Index: gcc/testsuite/g++.dg/gcov/gcov-9.C
===================================================================
--- gcc/testsuite/g++.dg/gcov/gcov-9.C  (revision 181539)
+++ gcc/testsuite/g++.dg/gcov/gcov-9.C  (working copy)
@@ -10,6 +10,8 @@ extern "C" void (*Foo ()) ()
   return Boo;
 }
 
-/* { dg-final { scan-assembler "\\.hidden\t__gcov___Z3Boov" } } */
+/* { dg-final { scan-assembler "\\.hidden\t__gcov___Z3Boov" { target { ! 
*-*-darwin*  } } } } */
+/* { dg-final { scan-assembler "\\.private_extern ___gcov___Z3Boov" { target 
*-*-darwin* } } } */
 /* { dg-final { scan-assembler "__gcov__Foo:" } } */
-/* { dg-final { scan-assembler-not "\\.hidden\t__gcov__Foo" } } */
+/* { dg-final { scan-assembler-not "\\.hidden\t__gcov__Foo" { target { ! 
*-*-darwin*  } } } } */
+/* { dg-final { scan-assembler-not "\\.private_extern ___gcov__Foo" { target 
*-*-darwin* } } } */