[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/Transforms/LoopVectorize/ee-crash.ll b/llvm/test/Transforms/LoopVectorize/ee-crash.ll
index 7ed1c66..0c38734 100644
--- a/llvm/test/Transforms/LoopVectorize/ee-crash.ll
+++ b/llvm/test/Transforms/LoopVectorize/ee-crash.ll
@@ -18,7 +18,7 @@
 for.body.i:                                       ; preds = %entry, %for.body.i
   %__init.addr.05.i = phi i32 [ %add.i, %for.body.i ], [ 0, %entry ]
   %__first.addr.04.i = phi i32* [ %incdec.ptr.i, %for.body.i ], [ %A, %entry ]
-  %0 = load i32* %__first.addr.04.i, align 4
+  %0 = load i32, i32* %__first.addr.04.i, align 4
   %q1 = extractelement <2 x i32> %q, i32 %n
   %q2 = add nsw i32 %0, %q1
   %add.i = add nsw i32 %q2, %__init.addr.05.i