[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/ARM/2009-08-02-RegScavengerAssert-Neon.ll b/llvm/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll
index a656c49..e277b4c 100644
--- a/llvm/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll
+++ b/llvm/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll
@@ -13,17 +13,17 @@
 	%"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
 	store <4 x i32> %v, <4 x i32>* %v_addr
 	store i32 %f, i32* %f_addr
-	%1 = load <4 x i32>* %v_addr, align 16		; <<4 x i32>> [#uses=1]
-	%2 = load i32* %f_addr, align 4		; <i32> [#uses=1]
+	%1 = load <4 x i32>, <4 x i32>* %v_addr, align 16		; <<4 x i32>> [#uses=1]
+	%2 = load i32, i32* %f_addr, align 4		; <i32> [#uses=1]
 	%3 = insertelement <4 x i32> undef, i32 %2, i32 0		; <<4 x i32>> [#uses=1]
 	%4 = shufflevector <4 x i32> %3, <4 x i32> undef, <4 x i32> zeroinitializer		; <<4 x i32>> [#uses=1]
 	%5 = mul <4 x i32> %1, %4		; <<4 x i32>> [#uses=1]
 	store <4 x i32> %5, <4 x i32>* %0, align 16
-	%6 = load <4 x i32>* %0, align 16		; <<4 x i32>> [#uses=1]
+	%6 = load <4 x i32>, <4 x i32>* %0, align 16		; <<4 x i32>> [#uses=1]
 	store <4 x i32> %6, <4 x i32>* %retval, align 16
 	br label %return
 
 return:		; preds = %entry
-	%retval1 = load <4 x i32>* %retval		; <<4 x i32>> [#uses=1]
+	%retval1 = load <4 x i32>, <4 x i32>* %retval		; <<4 x i32>> [#uses=1]
 	ret <4 x i32> %retval1
 }