[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/InstCombine/2007-06-06-AshrSignBit.ll b/llvm/test/Transforms/InstCombine/2007-06-06-AshrSignBit.ll
index 082b215..2b89a9d 100644
--- a/llvm/test/Transforms/InstCombine/2007-06-06-AshrSignBit.ll
+++ b/llvm/test/Transforms/InstCombine/2007-06-06-AshrSignBit.ll
@@ -9,13 +9,13 @@
 	ret void
 
 cond_true:		; preds = %newFuncRoot
-	%tmp30 = load i64* %tmp10		; <i64> [#uses=1]
+	%tmp30 = load i64, i64* %tmp10		; <i64> [#uses=1]
 	%.cast = zext i32 63 to i64		; <i64> [#uses=1]
 	%tmp31 = ashr i64 %tmp30, %.cast		; <i64> [#uses=1]
 	%tmp3132 = trunc i64 %tmp31 to i32		; <i32> [#uses=1]
 	%tmp33 = or i32 %tmp3132, 1		; <i32> [#uses=1]
 	store i32 %tmp33, i32* %tmp9
-	%tmp34 = load i32* %tmp9		; <i32> [#uses=1]
+	%tmp34 = load i32, i32* %tmp9		; <i32> [#uses=1]
 	store i32 %tmp34, i32* %retval
 	br label %return.exitStub
 }