MIPS: port Stop using with explicitly to implement try/catch.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 7666540f282d5cb977ecf2b93599787ea760b978..4704960039c9256578117a95f963aa7e638ecd19 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -2016,6 +2016,12 @@ void MacroAssembler::Call(Label* target) {
 }
 
 
+void MacroAssembler::Push(Handle<Object> handle) {
+  li(at, Operand(handle));
+  push(at);
+}
+
+
 #ifdef ENABLE_DEBUGGER_SUPPORT
 
 void MacroAssembler::DebugBreak() {