Run memcheck/tests/demangle with -q.

The interesting part is the demangled backtrace in the error message.
Suppress the memory allocation/blocks summary which can differ slightly
depending on the underlying arch/libs.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15308 a5019735-40e9-0310-863c-91ae7b9d1cf9

Author: mjw

memcheck/tests/demangle.stderr.exp

@@ -1,16 +1,5 @@
-
 Conditional jump or move depends on uninitialised value(s)
    at 0x........: abc::def<int, magic<int> >::xyzzy(int*, magic<int>*) (demangle.cpp:9)
    by 0x........: magic<int>::xyzzy(int*) (demangle.cpp:19)
    by 0x........: main (demangle.cpp:27)
 
-
-HEAP SUMMARY:
-    in use at exit: 6 bytes in 3 blocks
-  total heap usage: 3 allocs, 0 frees, 6 bytes allocated
-
-For a detailed leak analysis, rerun with: --leak-check=full
-
-For counts of detected and suppressed errors, rerun with: -v
-Use --track-origins=yes to see where uninitialised values come from
-ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

memcheck/tests/demangle.vgtest

@@ -1 +1,2 @@
 prog: demangle
+vgopts: -q