[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/InstCombine/div-shift-crash.ll b/llvm/test/Transforms/InstCombine/div-shift-crash.ll
index 96c2c22..936173c 100644
--- a/llvm/test/Transforms/InstCombine/div-shift-crash.ll
+++ b/llvm/test/Transforms/InstCombine/div-shift-crash.ll
@@ -39,7 +39,7 @@
   br label %for.cond1.i.i.i.i
 
 func_39.exit.i.i:                                 ; preds = %for.cond1.i.i.i.i
-  %l_8191.sroa.0.0.copyload.i.i = load i64* %0, align 1
+  %l_8191.sroa.0.0.copyload.i.i = load i64, i64* %0, align 1
   br label %for.cond1.i.i.i
 
 for.cond1.i.i.i:                                  ; preds = %safe_div_func_uint32_t_u_u.exit.i.i.i, %func_39.exit.i.i