std: clean up imports in a couple files

lib/std/process.zig

@@ -355,7 +355,7 @@ pub const GetEnvVarOwnedError = error{
 };
 
 /// Caller must free returned memory.
-pub fn getEnvVarOwned(allocator: mem.Allocator, key: []const u8) GetEnvVarOwnedError![]u8 {
+pub fn getEnvVarOwned(allocator: Allocator, key: []const u8) GetEnvVarOwnedError![]u8 {
     if (builtin.os.tag == .windows) {
         const result_w = blk: {
             const key_w = try std.unicode.utf8ToUtf16LeWithNull(allocator, key);
@@ -430,7 +430,7 @@ pub const ArgIteratorPosix = struct {
 };
 
 pub const ArgIteratorWasi = struct {
-    allocator: mem.Allocator,
+    allocator: Allocator,
     index: usize,
     args: [][:0]u8,
 
@@ -438,7 +438,7 @@ pub const ArgIteratorWasi = struct {
 
     /// You must call deinit to free the internal buffer of the
     /// iterator after you are done.
-    pub fn init(allocator: mem.Allocator) InitError!ArgIteratorWasi {
+    pub fn init(allocator: Allocator) InitError!ArgIteratorWasi {
         const fetched_args = try ArgIteratorWasi.internalInit(allocator);
         return ArgIteratorWasi{
             .allocator = allocator,
@@ -447,7 +447,7 @@ pub const ArgIteratorWasi = struct {
         };
     }
 
-    fn internalInit(allocator: mem.Allocator) InitError![][:0]u8 {
+    fn internalInit(allocator: Allocator) InitError![][:0]u8 {
         const w = os.wasi;
         var count: usize = undefined;
         var buf_size: usize = undefined;
@@ -760,7 +760,7 @@ pub const ArgIterator = struct {
     };
 
     /// You must deinitialize iterator's internal buffers by calling `deinit` when done.
-    pub fn initWithAllocator(allocator: mem.Allocator) InitError!ArgIterator {
+    pub fn initWithAllocator(allocator: Allocator) InitError!ArgIterator {
         if (builtin.os.tag == .wasi and !builtin.link_libc) {
             return ArgIterator{ .inner = try InnerType.init(allocator) };
         }
@@ -804,7 +804,7 @@ pub fn args() ArgIterator {
 }
 
 /// You must deinitialize iterator's internal buffers by calling `deinit` when done.
-pub fn argsWithAllocator(allocator: mem.Allocator) ArgIterator.InitError!ArgIterator {
+pub fn argsWithAllocator(allocator: Allocator) ArgIterator.InitError!ArgIterator {
     return ArgIterator.initWithAllocator(allocator);
 }
 
@@ -827,7 +827,7 @@ test "args iterator" {
 }
 
 /// Caller must call argsFree on result.
-pub fn argsAlloc(allocator: mem.Allocator) ![][:0]u8 {
+pub fn argsAlloc(allocator: Allocator) ![][:0]u8 {
     // TODO refactor to only make 1 allocation.
     var it = try argsWithAllocator(allocator);
     defer it.deinit();
@@ -864,7 +864,7 @@ pub fn argsAlloc(allocator: mem.Allocator) ![][:0]u8 {
     return result_slice_list;
 }
 
-pub fn argsFree(allocator: mem.Allocator, args_alloc: []const [:0]u8) void {
+pub fn argsFree(allocator: Allocator, args_alloc: []const [:0]u8) void {
     var total_bytes: usize = 0;
     for (args_alloc) |arg| {
         total_bytes += @sizeOf([]u8) + arg.len + 1;
@@ -1089,7 +1089,7 @@ pub const ExecvError = std.os.ExecveError || error{OutOfMemory};
 /// This function also uses the PATH environment variable to get the full path to the executable.
 /// Due to the heap-allocation, it is illegal to call this function in a fork() child.
 /// For that use case, use the `std.os` functions directly.
-pub fn execv(allocator: mem.Allocator, argv: []const []const u8) ExecvError {
+pub fn execv(allocator: Allocator, argv: []const []const u8) ExecvError {
     return execve(allocator, argv, null);
 }
 
@@ -1102,7 +1102,7 @@ pub fn execv(allocator: mem.Allocator, argv: []const []const u8) ExecvError {
 /// Due to the heap-allocation, it is illegal to call this function in a fork() child.
 /// For that use case, use the `std.os` functions directly.
 pub fn execve(
-    allocator: mem.Allocator,
+    allocator: Allocator,
     argv: []const []const u8,
     env_map: ?*const EnvMap,
 ) ExecvError {