[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/isel-v8i32-crash.ll b/llvm/test/CodeGen/ARM/isel-v8i32-crash.ll
index 0116fe8..f1745bd 100644
--- a/llvm/test/CodeGen/ARM/isel-v8i32-crash.ll
+++ b/llvm/test/CodeGen/ARM/isel-v8i32-crash.ll
@@ -15,7 +15,7 @@
 define void @func(i16* nocapture %pb, float* nocapture readonly %pf) #0 {
 entry:
   %0 = bitcast float* %pf to <8 x float>*
-  %1 = load <8 x float>* %0, align 4
+  %1 = load <8 x float>, <8 x float>* %0, align 4
   %2 = fmul <8 x float> %1, <float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00>
   %3 = fptosi <8 x float> %2 to <8 x i16>
   %4 = bitcast i16* %pb to <8 x i16>*