[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/Integer/BitPacked.ll b/llvm/test/Integer/BitPacked.ll
index e6e453a..def0a83 100644
--- a/llvm/test/Integer/BitPacked.ll
+++ b/llvm/test/Integer/BitPacked.ll
@@ -10,8 +10,8 @@
 {
         store <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, <4 x float>* @foo1
         store <2 x i10> <i10 4, i10 4>, <2 x i10>* @foo2
-	%l1 = load <4 x float>* @foo1
-        %l2 = load <2 x i10>* @foo2
+	%l1 = load <4 x float>, <4 x float>* @foo1
+        %l2 = load <2 x i10>, <2 x i10>* @foo2
         %r1 = extractelement <2 x i10> %l2, i32 1    
         %r2 = extractelement <2 x i10> %l2, i32 0
         %t = mul i10 %r1, %r2