Ruby » Ruby master

• include/ruby/intern.h: Add rb_check_arity, rb_error_arity [#6085]

• array.c: Use rb_check_arity / rb_error_arity

• class.c: ditto

• enumerator.c: ditto

• eval.c: ditto

• file.c: ditto

• hash.c: ditto

• numeric.c: ditto

• proc.c: ditto

• process.c: ditto

• random.c: ditto

• re.c: ditto

• signal.c: ditto

• string.c: ditto

• struct.c: ditto

• transcode.c: ditto

• vm_eval.c: ditto

• vm_insnhelper.c: ditto & implementation of rb_error_arity

• test/ruby/test_arity.rb: tests for above

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e