[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/BasicAA/nocapture.ll b/llvm/test/Analysis/BasicAA/nocapture.ll
index ffc0a09..26cb69b 100644
--- a/llvm/test/Analysis/BasicAA/nocapture.ll
+++ b/llvm/test/Analysis/BasicAA/nocapture.ll
@@ -6,9 +6,9 @@
 ; CHECK: ret i32 0
        %P = alloca i32
        %Q = call i32* @test(i32* %P)
-       %a = load i32* %P
+       %a = load i32, i32* %P
        store i32 4, i32* %Q   ;; cannot clobber P since it is nocapture.
-       %b = load i32* %P
+       %b = load i32, i32* %P
        %c = sub i32 %a, %b
        ret i32 %c
 }
@@ -19,7 +19,7 @@
 ; CHECK: call void @test3
 ; CHECK: store i32 0, i32* %p
 ; CHECK: store i32 1, i32* %x
-; CHECK: %y = load i32* %p
+; CHECK: %y = load i32, i32* %p
 ; CHECK: ret i32 %y
 entry:
        %q = alloca i32*
@@ -27,10 +27,10 @@
        ; attribute since the copy doesn't outlive the function.
        call void @test3(i32** %q, i32* %p) nounwind
        store i32 0, i32* %p
-       %x = load i32** %q
+       %x = load i32*, i32** %q
        ; This store might write to %p and so we can't eliminate the subsequent
        ; load
        store i32 1, i32* %x
-       %y = load i32* %p
+       %y = load i32, i32* %p
        ret i32 %y
 }