Update Clang for rebase to r212749.

This also fixes a small issue with arm_neon.h not being generated always.

Includes a cherry-pick of:
r213450 - fixes mac-specific header issue
r213126 - removes a default -Bsymbolic on Android

Change-Id: I2a790a0f5d3b2aab11de596fc3a74e7cbc99081d
diff --git a/test/CodeGenObjC/image-info.m b/test/CodeGenObjC/image-info.m
index 030bcae..49f5d90 100644
--- a/test/CodeGenObjC/image-info.m
+++ b/test/CodeGenObjC/image-info.m
@@ -4,14 +4,14 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix CHECK-NONFRAGILE < %t %s
 
-// CHECK-FRAGILE:      !llvm.module.flags = !{!0, !1, !2, !3}
-// CHECK-FRAGILE:      !0 = metadata !{i32 1, metadata !"Objective-C Version", i32 1}
-// CHECK-FRAGILE-NEXT: !1 = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0}
-// CHECK-FRAGILE-NEXT: !2 = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__OBJC, __image_info,regular"}
-// CHECK-FRAGILE-NEXT: !3 = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0}
+// CHECK-FRAGILE:      !llvm.module.flags = !{{{.*}}}
+// CHECK-FRAGILE:      !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Version", i32 1}
+// CHECK-FRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0}
+// CHECK-FRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__OBJC, __image_info,regular"}
+// CHECK-FRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0}
 
-// CHECK-NONFRAGILE:      !llvm.module.flags = !{!0, !1, !2, !3}
-// CHECK-NONFRAGILE:      !0 = metadata !{i32 1, metadata !"Objective-C Version", i32 2}
-// CHECK-NONFRAGILE-NEXT: !1 = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0}
-// CHECK-NONFRAGILE-NEXT: !2 = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
-// CHECK-NONFRAGILE-NEXT: !3 = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0}
+// CHECK-NONFRAGILE:      !llvm.module.flags = !{{{.*}}}
+// CHECK-NONFRAGILE:      !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Version", i32 2}
+// CHECK-NONFRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0}
+// CHECK-NONFRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
+// CHECK-NONFRAGILE-NEXT: !{{[0-9]+}} = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0}