[crankshaft] Exclude context parameter from HCallWithDescriptor arguments.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 6c014c4dffee0ff83b6959c2527888da354cd0f6..e423ed39db917318b642a86d2730c225eff05776 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -1031,7 +1031,7 @@ HValue* CodeStubGraphBuilderBase::BuildToString(HValue* input, bool convert) {
       }
       if_inputisprimitive.End();
       // Convert the primitive to a string value.
-      HValue* values[] = {context(), Pop()};
+      HValue* values[] = {Pop()};
       Callable toString = CodeFactory::ToString(isolate());
       Push(AddUncasted<HCallWithDescriptor>(Add<HConstant>(toString.code()), 0,
                                             toString.descriptor(),