Fix integer parameter range specs

They raised NoMethodError before, but this issue was hidden by raise_error
without class argument.

I think the intension was here, that integer parameters out of range
can either raise a RangeError or are truncated to the integer size.
This is what the test verifies now.

spec/ffi/number_spec.rb

@@ -145,32 +145,32 @@ module LibTest
 describe "Integer parameter range checking" do
   [ 128, -129 ].each do |i|
     it ":char call(:char (#{i}))" do
-      expect { expect(LibTest.ret_int8_t(i)).to eq(i) }.to raise_error
+      expect { expect(LibTest.ret_s8(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
   [ -1, 256 ].each do |i|
     it ":uchar call(:uchar (#{i}))" do
-      expect { expect(LibTest.ret_u_int8_t(i)).to eq(i) }.to raise_error
+      expect { expect(LibTest.ret_u8(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
   [ 0x8000, -0x8001 ].each do |i|
     it ":short call(:short (#{i}))" do
-      expect { expect(LibTest.ret_int16_t(i)).to eq(i) }.to raise_error
+      expect { expect(LibTest.ret_s16(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
   [ -1, 0x10000 ].each do |i|
     it ":ushort call(:ushort (#{i}))" do
-      expect { expect(LibTest.ret_u_int16_t(i)).to eq(i) }.to raise_error
+      expect { expect(LibTest.ret_u16(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
   [ 0x80000000, -0x80000001 ].each do |i|
     it ":int call(:int (#{i}))" do
-      expect { expect(LibTest.ret_int32_t(i)).to eq(i) }.to raise_error
+      expect { expect(LibTest.ret_s32(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
   [ -1, 0x100000000 ].each do |i|
-    it ":ushort call(:ushort (#{i}))" do
-      expect { expect(LibTest.ret_u_int32_t(i)).to eq(i) }.to raise_error
+    it ":uint call(:uint (#{i}))" do
+      expect { expect(LibTest.ret_u32(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }
     end
   end
 end