Use JSON grammar files to generate extended instruction sets.
diff --git a/source/opcode.cpp b/source/opcode.cpp
index 6560a5a..518da26 100644
--- a/source/opcode.cpp
+++ b/source/opcode.cpp
@@ -48,7 +48,7 @@
 // TODO(dneto): Some of the macros are quite unreadable.  We could make
 // good use of constexpr functions, but some compilers don't support that yet.
 const spv_opcode_desc_t opcodeTableEntries[] = {
-#include "opcode.inc"
+#include "core.insts.inc"
 };
 
 }  // anonymous namespace