[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/2009-04-06-AsmModifier.ll b/llvm/test/CodeGen/ARM/2009-04-06-AsmModifier.ll
index e90c5b3..bc7dbd4 100644
--- a/llvm/test/CodeGen/ARM/2009-04-06-AsmModifier.ll
+++ b/llvm/test/CodeGen/ARM/2009-04-06-AsmModifier.ll
@@ -8,14 +8,14 @@
 	store i32 0, i32* %retval
 	%res = alloca i32		; <i32*> [#uses=0]
 	%fh = alloca i32		; <i32*> [#uses=1]
-	%1 = load i32* %fh		; <i32> [#uses=1]
-	%2 = load i32* %ptr		; <i32> [#uses=1]
+	%1 = load i32, i32* %fh		; <i32> [#uses=1]
+	%2 = load i32, i32* %ptr		; <i32> [#uses=1]
 	%3 = call i32 asm "mov r0, $2; mov r1, $3; swi ${1:a}; mov $0, r0", "=r,i,r,r,~{r0},~{r1}"(i32 107, i32 %1, i32 %2) nounwind		; <i32> [#uses=1]
         store i32 %3, i32* %retval
 	br label %return
 
 return:		; preds = %entry
-	%4 = load i32* %retval		; <i32> [#uses=1]
+	%4 = load i32, i32* %retval		; <i32> [#uses=1]
 	ret i32 %4
 }