[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/CodeGen/Generic/2006-04-26-SetCCAnd.ll b/llvm/test/CodeGen/Generic/2006-04-26-SetCCAnd.ll
index 8465b82..f68dc32 100644
--- a/llvm/test/CodeGen/Generic/2006-04-26-SetCCAnd.ll
+++ b/llvm/test/CodeGen/Generic/2006-04-26-SetCCAnd.ll
@@ -22,8 +22,8 @@
 	]
 
 then.10:		; preds = %else.3, %else.3
-	%tmp.112 = load i16* null		; <i16> [#uses=2]
-	%tmp.113 = load i16* @G		; <i16> [#uses=2]
+	%tmp.112 = load i16, i16* null		; <i16> [#uses=2]
+	%tmp.113 = load i16, i16* @G		; <i16> [#uses=2]
 	%tmp.114 = icmp ugt i16 %tmp.112, %tmp.113		; <i1> [#uses=1]
 	%tmp.120 = icmp ult i16 %tmp.112, %tmp.113		; <i1> [#uses=1]
 	%bothcond = and i1 %tmp.114, %tmp.120		; <i1> [#uses=1]