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

src/full-codegen/x64/full-codegen-x64.cc

Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index 894a64a2ee657f5c23b9b79ddaad84cf1febc17d..5256b1a7a1f5b01178843eb4d476eb693a955fbb 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -823,13 +823,9 @@ void FullCodeGenerator::VisitVariableDeclaration(
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ VariableDeclaration");
-      __ Push(rsi);
       __ Push(variable->name());
       // Declaration nodes are always introduced in one of four modes.
       DCHECK(IsDeclaredVariableMode(mode));
-      PropertyAttributes attr =
-          IsImmutableVariableMode(mode) ? READ_ONLY : NONE;
-      __ Push(Smi::FromInt(attr));
       // Push initial value, if any.
       // Note: For variables we must not push an initial value (such as
       // 'undefined') because we may have a (legal) redeclaration and we
@@ -839,7 +835,10 @@ void FullCodeGenerator::VisitVariableDeclaration(
       } else {
         __ Push(Smi::FromInt(0));  // Indicates no initial value.
       }
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
+      __ CallRuntime(IsImmutableVariableMode(mode)
+                         ? Runtime::kDeclareReadOnlyLookupSlot
+                         : Runtime::kDeclareLookupSlot,
+                     2);
       break;
     }
   }
@@ -890,11 +889,9 @@ void FullCodeGenerator::VisitFunctionDeclaration(
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
-      __ Push(rsi);
       __ Push(variable->name());
-      __ Push(Smi::FromInt(NONE));
       VisitForStackValue(declaration->fun());
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
+      __ CallRuntime(Runtime::kDeclareLookupSlot, 2);
       break;
     }
   }
@@ -903,10 +900,9 @@ void FullCodeGenerator::VisitFunctionDeclaration(
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
-  __ Push(rsi);  // The context is the first argument.
   __ Push(pairs);
   __ Push(Smi::FromInt(DeclareGlobalsFlags()));
-  __ CallRuntime(Runtime::kDeclareGlobals, 3);
+  __ CallRuntime(Runtime::kDeclareGlobals, 2);
   // Return value is ignored.
 }