[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/PhaseOrdering/basic.ll b/llvm/test/Transforms/PhaseOrdering/basic.ll
index a8d4bb8..ef57e55 100644
--- a/llvm/test/Transforms/PhaseOrdering/basic.ll
+++ b/llvm/test/Transforms/PhaseOrdering/basic.ll
@@ -13,9 +13,9 @@
   %i = alloca i8*, align 8
   %call = call i8* @malloc(i64 1)
   store i8* %call, i8** %i, align 8
-  %tmp = load i8** %i, align 8
+  %tmp = load i8*, i8** %i, align 8
   store i8 1, i8* %tmp
-  %tmp1 = load i8** %i, align 8
+  %tmp1 = load i8*, i8** %i, align 8
   call void @free(i8* %tmp1)
   ret void
 
@@ -37,9 +37,9 @@
   %arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
   store i32 %add, i32* %arrayidx1, align 4
   %arrayidx2 = getelementptr inbounds i32, i32* %p, i64 1
-  %0 = load i32* %arrayidx2, align 4
+  %0 = load i32, i32* %arrayidx2, align 4
   %arrayidx3 = getelementptr inbounds i32, i32* %p, i64 0
-  %1 = load i32* %arrayidx3, align 4
+  %1 = load i32, i32* %arrayidx3, align 4
   %mul = mul i32 2, %1
   %sub = sub i32 %0, %mul
   ret i32 %sub