[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/JumpThreading/select.ll b/llvm/test/Transforms/JumpThreading/select.ll
index 545e86c..d0df772 100644
--- a/llvm/test/Transforms/JumpThreading/select.ll
+++ b/llvm/test/Transforms/JumpThreading/select.ll
@@ -135,7 +135,7 @@
 ; CHECK: icmp
 define void @test_switch_default(i32* nocapture %status) nounwind {
 entry:
-  %0 = load i32* %status, align 4
+  %0 = load i32, i32* %status, align 4
   switch i32 %0, label %L2 [
     i32 5061, label %L1
     i32 0, label %L2
@@ -146,7 +146,7 @@
   br label %L2
 
 L2:
-  %1 = load i32* %status, align 4
+  %1 = load i32, i32* %status, align 4
   %cmp57.i = icmp eq i32 %1, 0
   br i1 %cmp57.i, label %L3, label %L4