Use uint8_t to store the InstructionContext table. Saves 768 bytes of static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161034 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/X86DisassemblerTables.cpp b/utils/TableGen/X86DisassemblerTables.cpp
index c19520d..749557b 100644
--- a/utils/TableGen/X86DisassemblerTables.cpp
+++ b/utils/TableGen/X86DisassemblerTables.cpp
@@ -484,7 +484,7 @@
 }
 
 void DisassemblerTables::emitContextTable(raw_ostream &o, unsigned &i) const {
-  o.indent(i * 2) << "static const InstructionContext " CONTEXTS_STR
+  o.indent(i * 2) << "static const uint8_t " CONTEXTS_STR
                      "[256] = {\n";
   i++;