Put the MIPS stacktrace into the MipsISA namespace to fit with Alpha and SPARC.

--HG--
extra : convert_revision : 86f5585fe9ceb2ee30836d35384ebcddc1357c2a

src/arch/mips/stacktrace.hh

@@ -37,6 +37,9 @@
 class ThreadContext;
 class StackTrace;
 
+namespace MipsISA
+{
+
 class ProcessInfo
 {
   private:
@@ -118,4 +121,6 @@ StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
     return true;
 }
 
+}
+
 #endif // __ARCH_MIPS_STACKTRACE_HH__