[runtime] DeclareGlobals and DeclareLookupSlot don't need context parameters.

src/ppc/lithium-codegen-ppc.cc

Index: src/ppc/lithium-codegen-ppc.cc
diff --git a/src/ppc/lithium-codegen-ppc.cc b/src/ppc/lithium-codegen-ppc.cc
index 74a486f54543f239cf4218987dc7246287c2ccc3..e5dd69aa12dc43416413dcc4ef516e4bbb1a9046 100644
--- a/src/ppc/lithium-codegen-ppc.cc
+++ b/src/ppc/lithium-codegen-ppc.cc
@@ -3762,12 +3762,11 @@ void LCodeGen::DoContext(LContext* instr) {
 
 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
-  __ push(cp);  // The context is the first argument.
   __ Move(scratch0(), instr->hydrogen()->pairs());
   __ push(scratch0());
   __ LoadSmiLiteral(scratch0(), Smi::FromInt(instr->hydrogen()->flags()));
   __ push(scratch0());
-  CallRuntime(Runtime::kDeclareGlobals, 3, instr);
+  CallRuntime(Runtime::kDeclareGlobals, 2, instr);
 }