[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/Analysis/CFLAliasAnalysis/gep-signed-arithmetic.ll b/llvm/test/Analysis/CFLAliasAnalysis/gep-signed-arithmetic.ll
index eeb4237..c2fcf32 100644
--- a/llvm/test/Analysis/CFLAliasAnalysis/gep-signed-arithmetic.ll
+++ b/llvm/test/Analysis/CFLAliasAnalysis/gep-signed-arithmetic.ll
@@ -11,9 +11,9 @@
   %tmp31 = mul i32 %indvar, -2
   %tmp32 = add i32 %tmp31, 30
   %t.5 = getelementptr i32, i32* %tab, i32 %tmp32
-  %loada = load i32* %tab
+  %loada = load i32, i32* %tab
   store i32 0, i32* %t.5
-  %loadb = load i32* %tab
+  %loadb = load i32, i32* %tab
   %rval = add i32 %loada, %loadb
   ret i32 %rval
 }