update float16 testing

Author: sagudev

bindgen-tests/tests/expectations/tests/libclang-9/float16.rs

@@ -1,22 +1,36 @@
 // bindgen-flags: --with-derive-hash --with-derive-partialeq --with-derive-eq
 
-static _Float16 global;
+static __fp16 global;
 
-struct A
+struct Test__Float16
 {
-    _Float16 f;
+    __fp16 f;
 };
 
-#define COMPLEX_TEST(ty_, name_) \
-    struct Test##name_           \
-    {                            \
-        ty_ _Complex mMember;    \
-    };                           \
-    struct Test##name_##Ptr      \
-    {                            \
-        ty_ _Complex *mMember;   \
-    };
+struct Test__Float16Ref
+{
+    __fp16 *f;
+};
+
+/*
+// This options are currently supported only on specific targets (eg. x86 with sse2)
+_Float16 returns_f16();
+
+void gets_f16(_Float16 arg);
+
+struct Test__Float16_Complex
+{
+    _Float16 _Complex mMember;
+};
+
+struct Test__Float16_ComplexPtr
+{
+    _Float16 _Complex *mMember;
+};
+
+_Float16 _Complex globalValueHalf;
 
-COMPLEX_TEST(float, _Float16)
+_Float16 _Complex returns_f16_complex();
 
-_Float16 _Complex globalValueHalf;
+void gets_f16_complex(_Float16 _Complex arg);
+*/