Add "c_long_size" guard, supplanting "wordsize" and stop using Integer#size

What a "word" is when talking about sizes is confusing because it's a
highly overloaded term. Intel, Microsoft, and GDB are just a few vendors
that have their own definition of what a "word" is. Specs that used the
"wordsize" guard actually were mostly testing for the size of the C
`long` fundamental type, so rename the guard for clarity.

Also, get the size of `long` directly from RbConfig instead of guessing
using Integer#size. Integer#size is not guaranteed to have anything to
do with the `long` type.

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/ruby/core/array/pack/shared/integer.rb b/spec/ruby/core/array/pack/shared/integer.rb
index fd21b25b19..a89b5b733b 100644
--- a/spec/ruby/core/array/pack/shared/integer.rb
+++ b/spec/ruby/core/array/pack/shared/integer.rb
@@ -273,7 +273,7 @@ describe :array_pack_32bit_le_platform, shared: true do
     str.should == "\x78\x65\x43\x12\xcd\xab\xf0\xde\x21\x43\x65\x78"
   end
 
-  platform_is wordsize: 64 do
+  platform_is c_long_size: 64 do
     it "encodes the least significant 32 bits of a number that is greater than 32 bits" do
       [ [[0xff_7865_4321],  "\x21\x43\x65\x78"],
         [[-0xff_7865_4321], "\xdf\xbc\x9a\x87"]
@@ -299,7 +299,7 @@ describe :array_pack_32bit_be_platform, shared: true do
     str.should == "\x12\x43\x65\x78\xde\xf0\xab\xcd\x78\x65\x43\x21"
   end
 
-  platform_is wordsize: 64 do
+  platform_is c_long_size: 64 do
     it "encodes the least significant 32 bits of a number that is greater than 32 bits" do
       [ [[0xff_7865_4321],  "\x78\x65\x43\x21"],
         [[-0xff_7865_4321], "\x87\x9a\xbc\xdf"]