[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/GlobalOpt/fastcc.ll b/llvm/test/Transforms/GlobalOpt/fastcc.ll
index 76122b2..26398d2 100644
--- a/llvm/test/Transforms/GlobalOpt/fastcc.ll
+++ b/llvm/test/Transforms/GlobalOpt/fastcc.ll
@@ -2,13 +2,13 @@
 
 define internal i32 @f(i32* %m) {
 ; CHECK-LABEL: define internal fastcc i32 @f
-  %v = load i32* %m
+  %v = load i32, i32* %m
   ret i32 %v
 }
 
 define internal x86_thiscallcc i32 @g(i32* %m) {
 ; CHECK-LABEL: define internal fastcc i32 @g
-  %v = load i32* %m
+  %v = load i32, i32* %m
   ret i32 %v
 }
 
@@ -16,13 +16,13 @@
 ; convention.
 define internal coldcc i32 @h(i32* %m) {
 ; CHECK-LABEL: define internal coldcc i32 @h
-  %v = load i32* %m
+  %v = load i32, i32* %m
   ret i32 %v
 }
 
 define internal i32 @j(i32* %m) {
 ; CHECK-LABEL: define internal i32 @j
-  %v = load i32* %m
+  %v = load i32, i32* %m
   ret i32 %v
 }