test emitting and parsing bytecode with unprintable char in resource handle key

Author: sorenlassen

mlir/test/Bytecode/resources.mlir

@@ -4,21 +4,21 @@
 module @TestDialectResources attributes {
   // CHECK: bytecode.test = dense_resource<decl_resource> : tensor<2xui32>
   // CHECK: bytecode.test2 = dense_resource<resource> : tensor<4xf64>
-  // CHECK: bytecode.test3 = dense_resource<resource_2> : tensor<4xf64>
+  // CHECK: bytecode.test3 = dense_resource<"resource\09two"> : tensor<4xf64>
   bytecode.test = dense_resource<decl_resource> : tensor<2xui32>,
   bytecode.test2 = dense_resource<resource> : tensor<4xf64>,
-  bytecode.test3 = dense_resource<resource_2> : tensor<4xf64>
+  bytecode.test3 = dense_resource<"resource\09two"> : tensor<4xf64>
 } {}
 
 // CHECK: builtin: {
 // CHECK-NEXT: resource: "0x08000000010000000000000002000000000000000300000000000000"
-// CHECK-NEXT: resource_2: "0x08000000010000000000000002000000000000000300000000000000"
+// CHECK-NEXT: "resource\09two": "0x08000000010000000000000002000000000000000300000000000000"
 
 {-#
   dialect_resources: {
     builtin: {
       resource: "0x08000000010000000000000002000000000000000300000000000000",
-      resource_2: "0x08000000010000000000000002000000000000000300000000000000"
+      "resource\09two": "0x08000000010000000000000002000000000000000300000000000000"
     }
   }
 #-}