[OpenCL] Handle OpenCL specific subelement types

[Anastasia]

test/SemaOpenCL/array-init.cl

5

Minor thing - I would use sequential numeration of kernel names i.e. k1, k2, k3...

lib/Sema/SemaInit.cpp

if (IsStringInit(expr, arrayType, SemaRef.Context) == SIF_None) {
       ++Index;
       return;
     }
 
     // Fall through for subaggregate initialization.
 
   } else {
     assert((ElemType->isRecordType() || ElemType->isVectorType() ||
-            ElemType->isClkEventT()) && "Unexpected type");
+            ElemType->isOpenCLSpecificType()) && "Unexpected type");
 
     // C99 6.7.8p13:
     //
     //   The initializer for a structure or union object that has
     //   automatic storage duration shall be either an initializer
     //   list as described below, or a single expression that has
     //   compatible structure or union type. In the latter case, the
     //   initial value of the object, including unnamed members, is

test/SemaOpenCL/array-init.cl

+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL2.0
+// expected-no-diagnostics
+
+__kernel void k1(queue_t q1, queue_t q2) {
+  queue_t q[] = {q1, q2};
+}
+
+__kernel void k2(read_only pipe int p) {
+  reserve_id_t i1 = reserve_read_pipe(p, 1);
+  reserve_id_t i2 = reserve_read_pipe(p, 1);
+  reserve_id_t i[] = {i1, i2};
+}
+
+event_t create_event();
+__kernel void k3() {
+  event_t e1 = create_event();
+  event_t e2 = create_event();
+  event_t e[] = {e1, e2};
+}
+