[SYCL] Add missing includes in SYCL stubs for C++ standard headers.

Signed-off-by: Vladimir Lazarev <vladimir.lazarev@intel.com>

Author: vladimirlaz

clang/lib/Headers/sycl_wrappers/algorithm

@@ -9,6 +9,7 @@
 //===----------------------------------------------------------------------===//
 
 #include <initializer_list>
+#include <iterator>
 
 namespace std {
 

clang/lib/Headers/sycl_wrappers/random

@@ -9,6 +9,9 @@
 //===----------------------------------------------------------------------===//
 
 #include <initializer_list>
+#include <iostream>
+#include <limits>
+#include <vector>
 
 namespace std {
 

clang/test/CodeGenSYCL/inlining.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang --sycl %s -S -emit-llvm -o - | FileCheck %s
+
+template <typename name, typename Func>
+__attribute__((sycl_kernel)) void kernel_single_task(Func kernelFunc) {
+  kernelFunc();
+}
+
+int main() {
+  // CHECK-NOT: noinline
+  kernel_single_task<class kernel_function>([]() {});
+  return 0;
+}