[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/2009-09-13-InvalidSuperReg.ll b/llvm/test/CodeGen/ARM/2009-09-13-InvalidSuperReg.ll
index dd9a6fd..b8a1479 100644
--- a/llvm/test/CodeGen/ARM/2009-09-13-InvalidSuperReg.ll
+++ b/llvm/test/CodeGen/ARM/2009-09-13-InvalidSuperReg.ll
@@ -16,13 +16,13 @@
   %tmp3738 = inttoptr i32 %tmp37 to float*
   %tmp39 = add i32 %1, 24
   %tmp3940 = inttoptr i32 %tmp39 to float*
-  %2 = load float* %lsr.iv2641, align 4
-  %3 = load float* %tmp2930, align 4
-  %4 = load float* %tmp3132, align 4
-  %5 = load float* %tmp3334, align 4
-  %6 = load float* %tmp3536, align 4
-  %7 = load float* %tmp3738, align 4
-  %8 = load float* %tmp3940, align 4
+  %2 = load float, float* %lsr.iv2641, align 4
+  %3 = load float, float* %tmp2930, align 4
+  %4 = load float, float* %tmp3132, align 4
+  %5 = load float, float* %tmp3334, align 4
+  %6 = load float, float* %tmp3536, align 4
+  %7 = load float, float* %tmp3738, align 4
+  %8 = load float, float* %tmp3940, align 4
   %9 = insertelement <4 x float> undef, float %6, i32 0
   %10 = shufflevector <4 x float> %9, <4 x float> undef, <4 x i32> zeroinitializer
   %11 = insertelement <4 x float> %10, float %7, i32 1