[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/LoopStrengthReduce/2012-07-13-ExpandUDiv.ll b/llvm/test/Transforms/LoopStrengthReduce/2012-07-13-ExpandUDiv.ll
index 301c845..80095c3 100644
--- a/llvm/test/Transforms/LoopStrengthReduce/2012-07-13-ExpandUDiv.ll
+++ b/llvm/test/Transforms/LoopStrengthReduce/2012-07-13-ExpandUDiv.ll
@@ -19,10 +19,10 @@
   %l_2 = alloca [1 x i32], align 4
   %arrayidx = getelementptr inbounds [1 x i32], [1 x i32]* %l_2, i64 0, i64 0
   store i32 0, i32* %arrayidx, align 4
-  %tmp = load i32* @g_3, align 4
+  %tmp = load i32, i32* @g_3, align 4
   %idxprom = sext i32 %tmp to i64
   %arrayidx1 = getelementptr inbounds [1 x i32], [1 x i32]* %l_2, i64 0, i64 %idxprom
-  %tmp1 = load i32* %arrayidx1, align 4
+  %tmp1 = load i32, i32* %arrayidx1, align 4
   %conv.i.i = and i32 %tmp1, 65535
   %tobool.i.i.i = icmp ne i32 %tmp, 0
   br label %codeRepl