feat: Remove panic when `main_source` contains reference comment (#1086) #1039

Job	Run time
Publisg Wasm for ${{ matrix.target }}	0s
stable - ${{ matrix.settings.target }} - node@16	0s
Test bindings on aarch64-unknown-linux-musl - node@${{ matrix.node }}	0s
Test bindings on armv7-unknown-linux-gnueabihf - node@${{ matrix.node }}	0s
Test bindings on Linux-x64-gnu - node@${{ matrix.node }}	0s
Test bindings on x86_64-unknown-linux-musl - node@${{ matrix.node }}	0s
Test bindings on ${{ matrix.settings.target }} - node@${{ matrix.node }}	0s
Ok to publish	0s
npm	0s
	0s

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