Fix presubmit.

Review URL: http://codereview.chromium.org/6869006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/lithium-arm.h

@@ -1416,7 +1416,7 @@ class LCallConstantFunction: public LTemplateInstruction<1, 0, 0> {
 
 class LInvokeFunction: public LTemplateInstruction<1, 1, 0> {
  public:
-  LInvokeFunction(LOperand* function) {
+  explicit LInvokeFunction(LOperand* function) {
     inputs_[0] = function;
   }
 

src/x64/lithium-x64.h

@@ -1397,7 +1397,7 @@ class LCallConstantFunction: public LTemplateInstruction<1, 0, 0> {
 
 class LInvokeFunction: public LTemplateInstruction<1, 1, 0> {
  public:
-  LInvokeFunction(LOperand* function) {
+  explicit LInvokeFunction(LOperand* function) {
     inputs_[0] = function;
   }