update target json

Author: RalfJung

tests/tests.rs

@@ -95,7 +95,7 @@ fn json_target() {
         "llvm-target": "x86_64-unknown-none",
         "target-endian": "little",
         "target-pointer-width": "64",
-        "target-c-int-width": "32",
+        "target-c-int-width": 32,
         "data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
         "arch": "x86_64",
         "os": "none",