[X86] Change immediate type for some builtins from char to int.

These builtins are all handled by CGBuiltin.cpp so it doesn't much matter what the immediate type is, but int matches the intrinsic spec.

llvm-svn: 334310
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 48671b4..417422d 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -2807,6 +2807,10 @@
   case X86::BI__builtin_ia32_fpclassss_mask:
     i = 1; l = 0; u = 255;
     break;
+  case X86::BI__builtin_ia32_vperm2f128_pd256:
+  case X86::BI__builtin_ia32_vperm2f128_ps256:
+  case X86::BI__builtin_ia32_vperm2f128_si256:
+  case X86::BI__builtin_ia32_permti256:
   case X86::BI__builtin_ia32_pblendw128:
   case X86::BI__builtin_ia32_pblendw256:
   case X86::BI__builtin_ia32_blendps256: