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This PR tweaks inspect representation of `Prism::Location`. ## Before During debugging, the meaning of `@location=https://github.com/ruby/prism/commit/21474836481` was unclear: ```console $ ruby -Ilib -rprism -e 'p Prism.lex("puts :hi").value.map(&:first)[1]' #<Prism::Token:0x000000010cd74e40 @source=#<Prism::ASCIISource:0x000000010cb5f808 @source="puts :hi", @start_line=1, @offsets=[0]>, @type=:SYMBOL_BEGIN, @value=":", @location=https://github.com/ruby/prism/commit/21474836481> ``` ## After This PR clarifies the contents of the location object, aligning with what I think user expects: ```console $ ruby -Ilib -rprism -e 'p Prism.lex("puts :hi").value.map(&:first)[1]' #<Prism::Token:0x000000010e174d50 @source=#<Prism::ASCIISource:0x000000010df5efe8 @source="puts :hi", @start_line=1, @offsets=[0]>, @type=:SYMBOL_BEGIN, @value=":", @location=#<Prism::Location @start_offset=5 @length=1 start_line=1>> ``` Although it is uncertain whether Prism will accept this change in the inspect representation, it is submitted here as a suggestion. https://github.com/ruby/prism/commit/e7421ce1c5