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/Driver/debug-options.c b/test/Driver/debug-options.c
index 48f686b..e179ef0 100644
--- a/test/Driver/debug-options.c
+++ b/test/Driver/debug-options.c
@@ -38,11 +38,19 @@
 // RUN: %clang -### -c -gline-tables-only %s 2>&1 \
 // RUN:             | FileCheck -check-prefix=GLTO_ONLY %s
 // RUN: %clang -### -c -gline-tables-only %s -target x86_64-apple-darwin 2>&1 \
-// RUN:             | FileCheck -check-prefix=GLTO_ONLY_DARWIN %s
+// RUN:             | FileCheck -check-prefix=GLTO_ONLY_DWARF2 %s
+// RUN: %clang -### -c -gline-tables-only %s -target i686-pc-openbsd 2>&1 \
+// RUN:             | FileCheck -check-prefix=GLTO_ONLY_DWARF2 %s
+// RUN: %clang -### -c -gline-tables-only %s -target x86_64-pc-freebsd10.0 2>&1 \
+// RUN:             | FileCheck -check-prefix=GLTO_ONLY_DWARF2 %s
 // RUN: %clang -### -c -gline-tables-only -g %s -target x86_64-linux-gnu 2>&1 \
 // RUN:             | FileCheck -check-prefix=G_ONLY %s
 // RUN: %clang -### -c -gline-tables-only -g %s -target x86_64-apple-darwin 2>&1 \
-// RUN:             | FileCheck -check-prefix=G_ONLY_DARWIN %s
+// RUN:             | FileCheck -check-prefix=G_ONLY_DWARF2 %s
+// RUN: %clang -### -c -gline-tables-only -g %s -target i686-pc-openbsd 2>&1 \
+// RUN:             | FileCheck -check-prefix=G_ONLY_DWARF2 %s
+// RUN: %clang -### -c -gline-tables-only -g %s -target x86_64-pc-freebsd10.0 2>&1 \
+// RUN:             | FileCheck -check-prefix=G_ONLY_DWARF2 %s
 // RUN: %clang -### -c -gline-tables-only -g0 %s 2>&1 \
 // RUN:             | FileCheck -check-prefix=GLTO_NO %s
 //
@@ -78,21 +86,21 @@
 // GLTO_ONLY: "-gline-tables-only"
 // GLTO_ONLY-NOT: "-g"
 //
-// GLTO_ONLY_DARWIN: "-cc1"
-// GLTO_ONLY_DARWIN-NOT: "-g"
-// GLTO_ONLY_DARWIN: "-gline-tables-only"
-// GLTO_ONLY_DARWIN: "-gdwarf-2"
-// GLTO_ONLY_DARWIN-NOT: "-g"
+// GLTO_ONLY_DWARF2: "-cc1"
+// GLTO_ONLY_DWARF2-NOT: "-g"
+// GLTO_ONLY_DWARF2: "-gline-tables-only"
+// GLTO_ONLY_DWARF2: "-gdwarf-2"
+// GLTO_ONLY_DWARF2-NOT: "-g"
 //
 // G_ONLY: "-cc1"
 // G_ONLY-NOT: "-gline-tables-only"
 // G_ONLY: "-g"
 // G_ONLY-NOT: "-gline-tables-only"
 //
-// G_ONLY_DARWIN: "-cc1"
-// G_ONLY_DARWIN-NOT: "-gline-tables-only"
-// G_ONLY_DARWIN: "-gdwarf-2"
-// G_ONLY_DARWIN-NOT: "-gline-tables-only"
+// G_ONLY_DWARF2: "-cc1"
+// G_ONLY_DWARF2-NOT: "-gline-tables-only"
+// G_ONLY_DWARF2: "-gdwarf-2"
+// G_ONLY_DWARF2-NOT: "-gline-tables-only"
 //
 // GLTO_NO: "-cc1"
 // GLTO_NO-NOT: "-gline-tables-only"