Revert of [inspector] removed ArrayLengthHelperFunction specialization for empty array

src/inspector/Allocator.h

Index: src/inspector/Allocator.h
diff --git a/src/inspector/Allocator.h b/src/inspector/Allocator.h
index 18da916caca43d5ae4730402309e25b6b017cb08..606bfe6c45b7f89ff265b60274d2d6439a351c09 100644
--- a/src/inspector/Allocator.h
+++ b/src/inspector/Allocator.h
@@ -27,6 +27,11 @@
 // gives an error if passed a non-array.
 template <typename T, std::size_t Size>
 char (&ArrayLengthHelperFunction(T (&)[Size]))[Size];
+// GCC needs some help to deduce a 0 length array.
+#if defined(__GNUC__)
+template <typename T>
+char (&ArrayLengthHelperFunction(T (&)[0]))[0];
+#endif
 #define V8_INSPECTOR_ARRAY_LENGTH(array) \
   sizeof(::ArrayLengthHelperFunction(array))