Fix compiler warnings on "make android_arm"

src/compiler/js-operator.h

Index: src/compiler/js-operator.h
diff --git a/src/compiler/js-operator.h b/src/compiler/js-operator.h
index 19022fa8814c5ce64b437bf9f11d4bd373f59ec4..e5876a1a260de9558652a5898d738dc68361dc3c 100644
--- a/src/compiler/js-operator.h
+++ b/src/compiler/js-operator.h
@@ -374,9 +374,9 @@ std::ostream& operator<<(std::ostream&, CreateLiteralParameters const&);
 
 const CreateLiteralParameters& CreateLiteralParametersOf(const Operator* op);
 
-const BinaryOperationHint BinaryOperationHintOf(const Operator* op);
+BinaryOperationHint BinaryOperationHintOf(const Operator* op);

[Jakob Kummerow, 2016/08/25 11:35:11]

../../src/compiler/js-operator.h:377:67: warning: type qualifiers ignored on
function return type [-Wignored-qualifiers]
 const BinaryOperationHint BinaryOperationHintOf(const Operator* op);
                                                                   ^

 
-const CompareOperationHint CompareOperationHintOf(const Operator* op);
+CompareOperationHint CompareOperationHintOf(const Operator* op);

[Jakob Kummerow, 2016/08/25 11:35:11]

../../src/compiler/js-operator.h:379:69: warning: type qualifiers ignored on
function return type [-Wignored-qualifiers]
 const CompareOperationHint CompareOperationHintOf(const Operator* op);
                                                                     ^

 
 // Interface for building JavaScript-level operators, e.g. directly from the
 // AST. Most operators have no parameters, thus can be globally shared for all