[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/GlobalOpt/2010-02-26-MallocSROA.ll b/llvm/test/Transforms/GlobalOpt/2010-02-26-MallocSROA.ll
index ab7721f..12fa341 100644
--- a/llvm/test/Transforms/GlobalOpt/2010-02-26-MallocSROA.ll
+++ b/llvm/test/Transforms/GlobalOpt/2010-02-26-MallocSROA.ll
@@ -10,7 +10,7 @@
 
 define fastcc void @init_net() nounwind {
 entry:
-  %0 = load i32* @numf2s, align 4                 ; <i32> [#uses=1]
+  %0 = load i32, i32* @numf2s, align 4                 ; <i32> [#uses=1]
   %mallocsize2 = shl i32 %0, 4                    ; <i32> [#uses=1]
   %malloccall3 = tail call i8* @malloc(i32 %mallocsize2) nounwind ; <i8*> [#uses=1]
   %1 = bitcast i8* %malloccall3 to %struct.xyz*   ; <%struct.xyz*> [#uses=1]
@@ -20,7 +20,7 @@
 
 define fastcc void @load_train(i8* %trainfile, i32 %mode, i32 %objects) nounwind {
 entry:
-  %0 = load %struct.xyz** @Y, align 8             ; <%struct.xyz*> [#uses=0]
+  %0 = load %struct.xyz*, %struct.xyz** @Y, align 8             ; <%struct.xyz*> [#uses=0]
   ret void
 }