[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
diff --git a/llvm/test/CodeGen/ARM/fast-isel-vararg.ll b/llvm/test/CodeGen/ARM/fast-isel-vararg.ll
index e8c4001..aa37e7d 100644
--- a/llvm/test/CodeGen/ARM/fast-isel-vararg.ll
+++ b/llvm/test/CodeGen/ARM/fast-isel-vararg.ll
@@ -10,11 +10,11 @@
   %m = alloca i32, align 4
   %n = alloca i32, align 4
   %tmp = alloca i32, align 4
-  %0 = load i32* %i, align 4
-  %1 = load i32* %j, align 4
-  %2 = load i32* %k, align 4
-  %3 = load i32* %m, align 4
-  %4 = load i32* %n, align 4
+  %0 = load i32, i32* %i, align 4
+  %1 = load i32, i32* %j, align 4
+  %2 = load i32, i32* %k, align 4
+  %3 = load i32, i32* %m, align 4
+  %4 = load i32, i32* %n, align 4
 ; ARM: VarArg
 ; ARM: mov [[FP:r[0-9]+]], sp
 ; ARM: sub sp, sp, #32
@@ -39,7 +39,7 @@
 ; THUMB: bl {{_?}}CallVariadic
   %call = call i32 (i32, ...)* @CallVariadic(i32 5, i32 %0, i32 %1, i32 %2, i32 %3, i32 %4)
   store i32 %call, i32* %tmp, align 4
-  %5 = load i32* %tmp, align 4
+  %5 = load i32, i32* %tmp, align 4
   ret i32 %5
 }