parseStackLinesV8 cpu cost && memory cost is very high if the javascript's code is very large

[hardfist]

My compiler source code is very large(2M+ LOC, because it includes other wasm|asm.js code), which cause parseStackLinesV8's cost is very high for every plugin(100ms+ for every plugin), even though no exception thrown.

Maybe lazy execute parseStackLinesV8 until exception thrown could solve this issue