Support for dynamically generated JavaScript and source maps

[weinand]

A recent update to SystemJS has broken this feature. I've disabled it for this milestone.

for #4492:

• Windows
• OS X
• Linux

VS Code got experimental support for dynamically generated JavaScript and source maps produced by the universal dynamic module loader SystemJS. To support this the node debug extension listens for the "afterCompile" event of the node runtime and triggers a reload of the breakpoints if it detects a dynamically generated JavaScript with an inlined source map.

Please note: since the node runtime does not stop after the generated (transpiled) JavaScript has been compiled, registering breakpoints in the startup phase of the loaded JavaScript might come too late for actually hitting the breakpoints. Registration of breakpoints in code that is executed later works fine.

The snippet that triggered this feature request can be found in #4492.

I will add a better snippet for testing here.