[wasm] WasmRunner can run tests with I64 parameters and return value.

src/compiler/linkage.h

Index: src/compiler/linkage.h
diff --git a/src/compiler/linkage.h b/src/compiler/linkage.h
index 3012f56e01f2a3a98695737ed3b719f7e6a685bf..12c1be4d44a22a47596332713a4cb415770c44be 100644
--- a/src/compiler/linkage.h
+++ b/src/compiler/linkage.h
@@ -309,13 +309,14 @@ std::ostream& operator<<(std::ostream& os, const CallDescriptor::Kind& k);
 // Call[Runtime]    CEntryStub, arg 1, arg 2, arg 3, [...], fun, #arg, context
 class Linkage : public ZoneObject {
  public:
-  explicit Linkage(CallDescriptor* incoming) : incoming_(incoming) {}
+  explicit Linkage(const CallDescriptor* incoming) : incoming_(incoming) {}

[titzer, 2016/02/18 08:21:32]

CallDescriptors are immutable, so no need to add this C++ goop everywhere.

 
-  static CallDescriptor* ComputeIncoming(Zone* zone, CompilationInfo* info);
+  static const CallDescriptor* ComputeIncoming(Zone* zone,
+                                               CompilationInfo* info);
 
   // The call descriptor for this compilation unit describes the locations
   // of incoming parameters and the outgoing return value(s).
-  CallDescriptor* GetIncomingDescriptor() const { return incoming_; }
+  const CallDescriptor* GetIncomingDescriptor() const { return incoming_; }
   static CallDescriptor* GetJSCallDescriptor(Zone* zone, bool is_osr,
                                              int parameter_count,
                                              CallDescriptor::Flags flags);
@@ -389,7 +390,7 @@ class Linkage : public ZoneObject {
   static const int kOsrContextSpillSlotIndex = -1;
 
  private:
-  CallDescriptor* const incoming_;
+  const CallDescriptor* const incoming_;
 
   DISALLOW_COPY_AND_ASSIGN(Linkage);
 };