[gjs: 3/10] maint: Fix IWYU warnings

[Philip Chimento <pchimento src gnome org>]

commit b2984e17107d6a137faaedc109b3299261419e9a
Author: Philip Chimento <philip chimento gmail com>
Date:   Fri Mar 12 12:26:52 2021 -0800

    maint: Fix IWYU warnings
    
    Running IWYU on the whole codebase popped up a few warnings that had
    somehow gotten in during this development cycle.

 gi/arg.cpp         | 1 +
 gi/enumeration.cpp | 1 +
 gi/param.cpp       | 1 +
 3 files changed, 3 insertions(+)
---
diff --git a/gi/arg.cpp b/gi/arg.cpp
index 23620448..4574f98c 100644
--- a/gi/arg.cpp
+++ b/gi/arg.cpp
@@ -5,6 +5,7 @@
 
 #include <config.h>
 
+#include <stdint.h>
 #include <string.h>  // for strcmp, strlen, memcpy
 
 #include <string>
diff --git a/gi/enumeration.cpp b/gi/enumeration.cpp
index b3ae6f3c..117bfc3e 100644
--- a/gi/enumeration.cpp
+++ b/gi/enumeration.cpp
@@ -12,6 +12,7 @@
 #include <js/TypeDecls.h>
 #include <jsapi.h>  // for JS_DefineProperty, JS_NewPlainObject
 
+#include "gi/cwrapper.h"
 #include "gi/enumeration.h"
 #include "gi/wrapperutils.h"
 #include "gjs/jsapi-util.h"
diff --git a/gi/param.cpp b/gi/param.cpp
index 5a404eea..29d2e6f0 100644
--- a/gi/param.cpp
+++ b/gi/param.cpp
@@ -15,6 +15,7 @@
 #include <jsapi.h>       // for JS_GetClass, JS_GetPropertyById
 #include <jspubtd.h>     // for JSProto_TypeError
 
+#include "gi/cwrapper.h"
 #include "gi/function.h"
 #include "gi/param.h"
 #include "gi/repo.h"