Migrate instance of deprecated maps in HCheckMaps.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 2dc0f5417af9a1494a41198c06ea3e4d68a5f8ca..808312da2d8f803f99530a75c03322d4fdec566d 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -2437,13 +2437,16 @@ class LCheckInstanceType: public LTemplateInstruction<0, 1, 1> {
 };
 
 
-class LCheckMaps: public LTemplateInstruction<0, 1, 0> {
+class LCheckMaps: public LTemplateInstruction<0, 2, 0> {
  public:
-  explicit LCheckMaps(LOperand* value) {
-    inputs_[0] = value;
+  explicit LCheckMaps(LOperand* context,
+                      LOperand* value) {
+    inputs_[0] = context;
+    inputs_[1] = value;
   }
 
-  LOperand* value() { return inputs_[0]; }
+  LOperand* context() { return inputs_[0]; }
+  LOperand* value() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckMaps, "check-maps")
   DECLARE_HYDROGEN_ACCESSOR(CheckMaps)