[js] Fix bool to integer conversion.

Author: pmurias

src/vm/js/QAST/Compiler.nqp

@@ -2660,7 +2660,7 @@ class QAST::CompilerJS does DWIMYNameMangling does SerializeOnce {
                     return Chunk.new($T_INT, "({$chunk.expr}|0)", [$chunk]);
                 }
                 if $got == $T_BOOL {
-                    return Chunk.new($T_INT, "({$chunk.expr} ? '1' : '0')", [$chunk]);
+                    return Chunk.new($T_INT, "({$chunk.expr} ? 1 : 0)", [$chunk]);
                 }
             }