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f99468de65
Summary:This rev adds support for production sourcemaps on RAM. When we inject a module into JSC we use the original `sourceURL` and specify the `startingLineNumber` of the module relative to a "regular" bundle. By doing so, when an error is thrown, JSC will include the provided `sourceURL` as the filename and will use the indicated `startingLineNumber` to figure out on which line the error actually occurred. To make things a bit simpler and avoid having to deal with columns, we tweak the generated bundle so that each module starts on a new line. Since we cannot assure that each module's code will be on a single line as the minifier might break it on multiple (UglifyJS does so due to a bug on old versions of Chrome), we include on the index the line number that should be used when invoking `JSEvaluateScript`. Since the module length was not being used we replaced the placeholder we have there for the line number. Reviewed By: javache Differential Revision: D2997520 fb-gh-sync-id: 3243a489cbb5b48a963f4ccdd98ba63b30f53f3f shipit-source-id: 3243a489cbb5b48a963f4ccdd98ba63b30f53f3f