[clang][bytecode][NFC] Limit pointer and array ops to integer indices (#168022)

AluOpcode includes fixed point as well, which isn't possible here.

Author: tbaederr

clang/lib/AST/ByteCode/Opcodes.td

@@ -361,8 +361,14 @@ def NarrowPtr : Opcode;
 // [Pointer] -> [Pointer]
 def ExpandPtr : Opcode;
 // [Pointer, Offset] -> [Pointer]
-def ArrayElemPtr : AluOpcode;
-def ArrayElemPtrPop : AluOpcode;
+def ArrayElemPtr : Opcode {
+  let Types = [IntegralTypeClass];
+  let HasGroup = 1;
+}
+def ArrayElemPtrPop : Opcode {
+  let Types = [IntegralTypeClass];
+  let HasGroup = 1;
+}
 
 def ArrayElemPop : Opcode {
   let Args = [ArgUint32];
@@ -536,9 +542,15 @@ def InitElemPop : Opcode {
 //===----------------------------------------------------------------------===//
 
 // [Pointer, Integral] -> [Pointer]
-def AddOffset : AluOpcode;
+def AddOffset : Opcode {
+  let Types = [IntegralTypeClass];
+  let HasGroup = 1;
+}
 // [Pointer, Integral] -> [Pointer]
-def SubOffset : AluOpcode;
+def SubOffset : Opcode {
+  let Types = [IntegralTypeClass];
+  let HasGroup = 1;
+}
 
 // [Pointer, Pointer] -> [Integral]
 def SubPtr : Opcode {