Change some tests to be valid PNaCl IR (parameter type from i1 -> i32).

src/IceTargetLoweringX8632.cpp

Index: src/IceTargetLoweringX8632.cpp
diff --git a/src/IceTargetLoweringX8632.cpp b/src/IceTargetLoweringX8632.cpp
index 1e510471a902343e8b794a3dd7a8a9a1eb20862a..dbfe60f334a7aa3a11308d600cc45aa924e0269c 100644
--- a/src/IceTargetLoweringX8632.cpp
+++ b/src/IceTargetLoweringX8632.cpp
@@ -1281,6 +1281,8 @@ void TargetX8632::lowerCall(const InstCall *Instr) {
       _mov(T, Arg);
       _push(T);
     } else {
+      // Otherwise PNaCl requires parameter types to be at least 32-bits.
+      assert(Arg->getType() == IceType_f32 || Arg->getType() == IceType_i32);
       _push(Arg);
     }
     StackOffset += typeWidthInBytesOnStack(Arg->getType());